 | | Journal (article/letter/editorial) |
| Mineral Society’s 2018 show theme, Crystals and Crystal
Forms, we have selected Muzo-habit quartz from...that occurs as
colorless anhedral grains in many rock types. Quartz has a
Mohs hardness of 7 and is very...trigonal crystal system (or rhombohedral subsystem
of the hexagonal crystal system). This crystal class...crystal’s habit—its overall shape—depends on which
crystal forms are present and the relative degree of their...that quartz crystals display only three major crystal
forms: the hexagonal prism m{100} and the two terminal |
 | | Book |
| Bagmati zone, r epal. Bottomright: A 8 x 6 cm crystal aggregate of pink quartz ,.,,th eolc1tecr·1stals(#PM0S00)...depths of the sea, he is in the transparenetJof the crystal, lzeis in the joy he has broughtforever to our... Cuasso al Monte for orthoclases, the Bisusduo quarry for lenticular calcite, the Zogno mine for fluorites...3E"/Z./L_L_o ........ A 3 x 2 cm single beryl crystal on matrix from Trontano. Ossola valley, Piedmont...cm twisted dolomite crystals on marble. Carrara quarry, Tuscany, Italy. Paolo Martinetti personal finding |
 | | Book |
| cube is called Pyrite,
but when it is found in a crystal of the prismatic system it
is known by the name...EARTH =
20:00
9.75
25.00
..
Sub -species of - Rock soap.
Silica
Protoxide of Iron
:
Protoxide of...13:23
{ Copper
Sulphur
79.84
:
RETINITE
Rock crystal.
Rose quartz.
Tripoli.
::
REDRUTHITE
37...Kämmererite.
ROCK CRYSTAL.
See Quartz.
Chlorine
ROCK SALT
:
{ Sodium
60.68
39.32
:
ROCK SOAP.
See...those localities are mentioned which afford well -crystal
lized specimens, or where the mineral occurs in |
 | | Journal (issue) |
| Peter Worsley
Pleistocene and Flandrian natural rock salt
subsidence at Arclid Green, Sandbach, Cheshire...will take him
from Austria through Germany to Belgium.
Sandstone Caves of Nottingham
Notes for authors...trails over the site or to overlook the
nearby Dene Quarry which still produces aggregate.
The Centre offers...see the new exposures in an extension to
Ketton Quarry, led by Alan Dawn, was the first of the
season’s...East
Midlands Field Guide. Gerry Shaw’s leaflet ‘Rock
Around the Campus’ highlighting the geology to be |
 | | Book (volume) |
| filamentous net-work is here brown.
Ayrshire. At Lagg Quarry, Fisherton, Ayr.
The mossy or stalactitic
surrounded...
:
Liulithgowshire in an opening near the old quarry of Kirkton,
masses in limestone of Yoredale age...occur, in Scotland.
Wherever pos-
sible, the crystal forms of
the original minerals are given, with...localities of any importance
The
Dumbartonshire
Quarry.
only
are Bowling, Lang Crag, Glen Arbuck, Loch...was formerly not uncommon at one part of Bowling Quarry.
105. Prehnite after Analcime Hartfield, Kenfrewshire |
 | | Journal (article/letter/editorial) |
| Assynt. Here the dyke runs along the strike of the rock.
A second locality is about half a mile south of...crystals are dichroic. There is little quartz in
the rock. The felspar is striated, and contains n~.uch apatite...present in tortuous forms ; it may be iserine. The rock appears
to be undergoing a transmutation into an...occurs on the shore at Loeh Inver. This Loch Inver rock
is a n~lange of equal sized crystals of augite,...to the crystals of the felspar, which
renders the rock characteristic.
134
PROFESSOR HEDDLEON
Another |
 | | Journal (article/letter/editorial) |
| Assynt. Here the dyke runs along the strike of the rock. A second locality is about half a mile south of...crystals are dichroic. There is little quartz in the rock. The felspar is striated, and contains n~.uch apatite...present in tortuous forms ; it may be iserine. The rock appears to be undergoing a transmutation into an...occurs on the shore at Loeh Inver. This Loch Inver rock is a n~lange of equal sized crystals of augite,...to the crystals of the felspar, which renders the rock characteristic. 134 PROFESSOR HEDDLEON Another |
 | | Book (volume) |
| Ohio
OHIO
Only Paleozoic rock formations underlie Ohio’s Pleistocene surface debris and
Quaternary soils...the western counties,
especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....areas of drainage in
336
A Location Guide for Rock Hounds in the Untied States
townships of Franklin...jct. of Brint St. and Centennial rd., the Medusa Quarry (SW of 4
quarries), very many specimens⎯fossils...deposits⎯Hematite.
OTTAWA COUNTY
CLAY CENTER, area limestone quarry, famed⎯Calcite, Celestite (fluorescent),
Dolomite |
 | | Journal (volume) |
| (34 mm across) from the Whin Sill at Barrasford Quarry,
Gunnerton, Northumberland. Peter Briscoe Collection;...Young and Andy Hopkirk
4–16
Millerite from Linton Quarry, Gorsley Common, Herefordshire
Roy E. Starkey...a note on the
‘magnificent uralite porphyry’, an intriguing rock, which like the Gorsley Common millerite...sphalerite crystal (7 mm across) on calcite with
chalcopyrite; Level G, West Face, Cloud Hill Quarry, Breedon...of edingtonite
(to 15 mm) on prehnite: Squilver Quarry, Disgwylfa Hill, Moreswood,
Shropshire; 110×60×40 |
 | | Book (volume) |
| Ohio
OHIO
Only Paleozoic rock formations underlie Ohio’s Pleistocene surface debris and
Quaternary soils...the western counties,
especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....areas of drainage in
336
A Location Guide for Rock Hounds in the Untied States
townships of Franklin...jct. of Brint St. and Centennial rd., the Medusa Quarry (SW of 4
quarries), very many specimens⎯fossils...deposits⎯Hematite.
OTTAWA COUNTY
CLAY CENTER, area limestone quarry, famed⎯Calcite, Celestite (fluorescent),
Dolomite |
 | | Book (volume) |
| A Location Guide for Rock Hounds in the United States
SOUTH DAKOTA
This northwestern Great Plains state...and Spodumene. For instance, a single Spodumene crystal
from the Etta Mine near Keystone on the east side...petrified wood, wood opal.
438
A Location Guide for Rock Hounds in the United States
CUSTER COUNTY
AREA:...minesColumbite, Gold,
Silver, etc.; and (2) Old Marble Quarry on the Needles Hwy. 5.5 mi. NEScheelite, and
deep... E 6 mi., on French Cr., the Scott Rose Quartz
QuarryAmblygonite (large yellow crystals), Aquamarine |
 | | Book |
| this book is a systematic look at the
mineral and rock materials that have been used from prehistoric times...extensive mineral and rock species
index to see all references to a specific rock or mineral.
This book...(practicing and in training) who deal regularly with rock
and mineral artifacts. Geoarchaeologists, diverse...properties. There is
some overlap in the coverage of rock materials in this chapter with Chap. 6, which
covers...chapter
important uses are noted, e.g., examples of rock sculptures are discussed in both
Chaps. 6 and 11 |
 | | Catalog/List |
| invited.
ABBREVIATIONS
used in this catalog
xl
-crystal
xlled -crystalled
xlline - crystalline
xllized...············································ 28
ROCK AND MINERAL COLLECTIONS······················-·...Black glassy crystals imbedded in
camptonite dike rock ..................
.
TREMOLITE Calcium magnesium...Mountains, Marysvale
~ink
crystalline mass, same crystal vugs ....
AMBL YGONITE Sodium lithium aluminum... Arassuahy
Transparent brown-green pleochroic crystal
prisms ¼"to ½" $. 25 each 5/$1. 00 .......
Czechoslovakia |
 | | Report (issue) |
| 5848; ~lagnetite, 5996; Manganese dioxide, 6414; Rock Crystal, 7188; Ruby, 2361 Agate Downs ColdfieldSuuATION:...Gold, see 3825 3826 GEOLOGICAL :!\oTE: The country rock of the Alice Goldfield 1, giamte. Qu.irtzites and...biotiteho~nlJlende OTHmt"' T,irnPotnn", a trnet rock, and ironstone occur about Mt. Lucy, a~d wolfram...unclfr Artesfan Bores. No. 358. Ambrose Lunestone Quarry i-nnle from Ambrose Rail Stn. \Rockhampton Gladstone...ust1c1lly wlnte Il=5"55. Sp gr.=2 2 In , olcamc rock Lor Stiathmote Cr , hr of Bowen R 55 n,ilcs S \V |
 | | Book |
| 95
IT.
Illustrating progressive alteration of rock .under solfatara-action
Figure
Lava flow near...are from 900 to 1200
feet high, cliffs of bare rock, often vertical or overhanging, alternate with steep...tracking" them from paths and steps hewn in the solid rock,
now puUing them by rusty and time-worn chains clamped...the oldest beds, in which, indeed, the calcareous rock is often entirely
At the eastern entrance to the...sandstone, arenaceous
shale resembling a similar rock of the Kwei coal field, and a shaly quartzose
conglomerate |
 | | Journal (issue) |
| loosely aggregated, and passing into a compact salite
rock.
There are other specimens in which the same white...several specimens of what we then called mortised rock, and I be lieve your specimen from Pittsfield is...important iron mine, clay, sand, or marl bed, stone quarry, or fossil bearing for mation is represented; and...cretionary structure, joint and columnar structure, rock cleavage, cave formations—stalactites, helicites...which were formed in lava, trap rock, granite, gneiss, schist, porphyry, iron ores, shales, sandstones |
 | | Book (edition) |
| asc. ces csccecyseeses
rs ce ceee ce sce eye
6
ROCK AND
10
MINERAL
DESCRIPTIONS
...........ceceeseeceveeee...ois a)Rock” Limestone ..
alg elaeeie
10
15
Marbles cas cons...vaneless eset es aoe ree aerial
MISCELLANEOUS
ROCK
STRUCTURES
(2020 0c5200
2. ones ene
Concretions...minerals.
Descriptions and photographs of Missouri rock and mineral
occurrences are provided, and essential...does separate them
and
of
rock,
in definition.
For our purpose, a rock is an aggregate of mineral |
 | | Journal (issue) |
| Namnabat
Bookplates, p . 533
497
Chips from the Quarry
518
Connoisseur's Choice: Aragonite Part 3: Southern...different lighting conditions.
Chips from the Quarry
M
IM'S THE WORD: Dona
Leicht. covered the grand... Figure 48. Catapleiite, 12 cm across, Poudrette quarry, Mont
Saint-Hilaire, La Vallee-du-Richelieu RCM...accessed April 2023) and
the defunct Rand London quarry northeast ofJohannesburg
(https:/ /www.mindat.org/loc-56488...For several years during the 1990s, Rand London
quarry granted permission for local mineral club members |
 | | Book |
| indebtedness to his colleagues, and the many architects, quarry-owners, and merchants who have assisted him with...east, we find the bright red houses on a belt of rock only a few hundred yards wide, surrounded on either...to understand the various relationships of these rock masses in the field and their mode of formation...in addressing a society of architects ; Vgo to a quarry to see stone actually quarried, go to a mason's...aqueous solutions, cold or warm, or from molten liquid rock magmas. Some mineral substances have been formed |
 | | Journal (article/letter/editorial) |
| the "Keystone Newsletter.")
Do you know why many quarry owners will
not grant permission to collectors... Always watch for the over-hang. Just because a rock has been sticking there since Tnassic time is no...there forever.
2. Listen for loose walls and rotten rock.
Hammering on such can cause a lot more than
you...to come down.
3. Talus or piles of loose blasted rock can
avalanche and take you with them. Test the
rocks...rocks for looseness before climbing. If a rock
rolls move sideways.
4. Inspect a mineral location before |
 | | Journal (article/letter/editorial) |
| quartz of group A was found. Among
them are the rock crystals deposit Olkhovskoe in the
Northern Urals...Perekatnoe in Yakutia, and some
deposits of the Aldan rock crystal-bearing province
(Rakov, 1999). However, the...in ores amount to about 20% on average. The
main rock-forming minerals are pyrite, chalcopyrite,
galena...rocks: diorite
porphyrites, granodiorite–porphyry, granite—porphyry, etc.; (4) Amanan complex (Т), biotite–amphibole...Teremkinskoe.
canic intrusion of high-K granodiorite–porphyry of
the Amudzhikan complex. The marginal parts |
 | | Journal (issue) |
| attention it really deserves. The
smaller the crystal the more likely it
is to be a ·true type and under...Native Lead, rare !-Smithsonite, fine green--Rock Crystal groups, $3.SO.
Sphalerite
I would like to send...this vicinity are well acquainted with the Bedford quarry. The
writer bas collected at this locality the...seen.
11uscovite has been obtained in the
South quarry, thin sections of sheets
show very distinct outlines...minerals would benefit
greatly by a visit to this quarry.
70
ROCKS AND MINERALS
-
pyrit
THE STORY |
 | | Journal (article/letter/editorial) |
| and strbe on rounded and polished surfaces of the rock, which Agassiz refers to the action of glaciers...In February last curiosity led me into the Flag-quarry, which lies about 300 yards from the mail-coach...purpose of examining the joints and split of the rock, I Downloaded from http://jgslegacy.lyellcollection...PROCEEDINGS OF THE GEOLOGICAL SOCIETY. ascended from the quarry to the top, where a space of ground had been cleared...the polish and undulations of the surface of the rock ; and a detail of my examination of these phenomena |
 | | Book (edition) |
| Mount Buffalo, the
lonely magnificence of Ayer's Rock and Mount Olga in the red
centre-these and many...and curiosity. What is the basis of these
great rock structures? How were they formed? How old are they...and minerals in the crust, and that most precious rock, the thin
layer of soil, upon which all farming...Earth, and the minerals of
which the rocks are made.
Rock is the solid, natural material which makes up the...surface
layers of the Earth. To the geologist, ice is rock, and so is sand or soil.
There are hundreds of different |
 | | Book |
| been properly depicted in books. In addition, the rock types commonly used in Finland
as gemstones, are.... . . . . . . . 196
13
Striped quartz-epidote rock in Iisalmi . . . . . . . . . 199
Breccias and mylonites...201
Finnish speciality, rock types as gemstones . . . . . . 19
Serpentine rock in Ankele . . . . . . ... . . . . . . . . . . . . . 315
Limestone and porphyry of Baltic Sea . . . . . . . . . 124
Marbles...in 1990. Risto is specialized in natural stones,
rock aggregates, industrial minerals and gemstones. He |
Porphyry quarry, Bierghes, Rebecq, Walloon Brabant, Wallonia, Belgium