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Mineral Deposits Division
Cave Formations
A stalactite (Greek,
from the word for "drip" and meaning "that which drips") is a type of
speleothem
(secondary mineral) that hangs from the ceiling or wall of
limestone
caves. It is
sometimes referred to as dripstone.
Calcite is a
carbonate mineral
and the most stable
polymorph of
calcium carbonate
Image Code N19 |
Catalogue No.: N19
Description: Stalactites x 22 pieces.
Size: mm. |
Image Code N24 |
Catalogue No.: N24
Description: Stalactite.
Size: 700 x 450mm. |
Image Code N25 |
Catalogue No.: N25
Description: Stalactite.
Size: 600 x 650mm. |
Image Code N26 |
Catalogue No.: N26
Description: Stalactite.
Size: 760 x 760 x 500mm. |
Image Code N27 |
Catalogue No.: N27
Description: Stalactite.
Size: 650 x 740mm. |
Image Code N28 |
Catalogue No.: N28
Description: Stalactite.
Size: 730 x 310mm. |
Image Code N29 |
Catalogue No.: N29
Description: Stalactite.
Size: 800 x 300 mm. |
Image Code N30 |
Catalogue No.: N30
Description: Stalactite.
Size: 600 x 300mm. |
Image Code N31 |
Catalogue No.: N31
Description: Stalactite.
Size: 690 x 330mm. |
Image Code N32 |
Catalogue No.: N32
Description: Stalactite.
Size: 220 x 150mm. |
Image Code N33 |
Catalogue No.: N33
Description: Stalactite.
Size: 470 x 230mm. |
Image Code N34 |
Catalogue No.: N34
Description: Stalactite.
Size: 360 x 330mm. |
Image Code N35 |
Catalogue No.: N35
Description: Stalactite.
Size: 580 x 200mm. |
Image Code N36 |
Catalogue No.: N36
Description: Stalactite.
Size: 360 x 300mm. |
Image Code N37 |
Catalogue No.: N37
Description: Stalactite.
Size: 280 x 190mm. |
Image Code N38 |
Catalogue No.: N38
Description: Stalactite.
Size: 500 x 800 x 360mm. |
Image Code N39 |
Catalogue No.: N39
Description: Stalactite.
Size: 1200 x 340mm. |
Image Code N40 |
Catalogue No.: N40
Description: Stalactite.
Size: 730 x 580mm. |
Image Code N41 |
Catalogue No.: N41
Description: Stalactite.
Size: 310 x 220mm. |
Image Code N389 |
Catalogue No.: N389
Description: Cave Deposit.
Size: mm. |
Mineralised Dinosaur Bone
Image Code F2932 |
Catalogue No.: F2932
Description: Dinosaur Bone Sphere.
Size: Ř 110mm. |
Image Code F2941 |
Catalogue No.: F2941
Description:
Mineral deposit. Polished Dinosaur Bone.
Size: 150 x 130mm. |
Image Code F3045 |
Catalogue No.: F3045
Description:
Mineral deposit. Polished Dinosaur Bone.
Size: 140 X 120mm. |
Pyrites (Fools Gold)
Image Code F2947 |
Catalogue No.: F2947
Description:
Pyrite Crystals (Fool Gold).
Mineral deposit. Sulfide mineral
iron
disulfide
(FeS2). Color: pale brass yellow, dull gold.
Crystal habit:
Cubicfaces may be striated, but also frequently octahedral and pyritohedron. Often inter-grown, massive, radiated, granular, globular and
stalactitic.
Crystal system
Isometric.
Size: 390 x 300mm. |
Image Code F3110 |
Catalogue No.: F3110
Description: Pyrites Growth.
Size: 110 x 65mm. |
Copper Ore
Image Code F2948
Image Code F2948a |
Catalogue No.: F2948
Description:
Copper Rock.
Mineral deposit. Copper is a
chemical element with the symbol Cu (Latin:
cuprum)
and atomic number 29. It is a ductile metal with excellent electrical
conductivity and is rather supple in its pure state and has a pinkish luster
which is (beside gold) unusual for metals which are normally silvery white.
It finds use as a heat conductor, an electrical conductor, as a building
material, and as a constituent of various metal alloys.
Size: 390 x 380mm. |
Image Code G250 |
Catalogue No.: G250
Description: Crystaline Copper with Cuprite.
Dzhezkazgan Mine, Dzhezkazgan, Zhezqazghan Oblysy, Kazakhstan.
Size: 22 X 49mm. |
Image Code G251 |
Catalogue No.: G251
Description: Copper.
Size: 38 X 30mm. |
Image Code G400 |
Catalogue No.: G400
Description: Natural copper nugget.
Size: 233 X 89mm. |
Image Code G401 |
Catalogue No.: G401
Description: Natural copper nugget.
Size: 143 X 122mm. |
Image Code G402 |
Catalogue No.: G402
Description: Natural copper nugget.
Size: 144 X 114mm. |
Silver Ore
Image Code G153 |
Catalogue No.: G153
Description: Natural Silver Nugget.
Size: 40 X 61mm. |
Image Code G154 |
Catalogue No.: G154
Description: Natural Silver Nugget.
Size: 41 X 62mm. |
Image Code G406 |
Catalogue No.: G406
Description: Natural silver nugget.
Size: 65 X 54mm. |
Candlerock
Orange Onyx
Image Code F3640 |
Catalogue No.: F3640
Description:
Mineral crystal. Candlerock
Orange Onyx. Onyx is a
cryptocrystalline
form of
quartz. The colors of its bands
range from white to almost every color (save some shades, such as purple or
blue.) Commonly, specimens of onyx available contain bands of colors of
white, tan, and brown. Sardonyx is a variant in which the colored bands are
sard (shades of red) rather than
black. Pure black Onyx is common, and perhaps the most famous variety, but
not as common as Onyx with banded colors.
Size: 430 x 300mm. |
Chrysanthemum Stone
Image Code F4408 |
Catalogue No.: F4408
Description: Mineral.
Chrysanthemum Stone.
Asia. This natural stone is rare and
unique mineral crystal found in the Hunan province in China, found at the
bottom of the Daxi River in Yonghe town, Liu Yang. These striking black and
white rocks are made of Gypsum clay, Dolomite and Limestone, with internal
crystals of Calcite, Feldspar, Celestite or Andalusite in patterns which
resemble Chrysanthemum flowers or Snowflake crystals.
Size: 160mm. |
Image Code F4409 |
Catalogue No.: F4409
Description: Mineral.
Chrysanthemum Stone.
Asia. This natural stone is rare and
unique mineral crystal found in the Hunan province in China, found at the
bottom of the Daxi River in Yonghe town, Liu Yang. These striking black and
white rocks are made of Gypsum clay, Dolomite and Limestone, with internal
crystals of Calcite, Feldspar, Celestite or Andalusite in patterns which
resemble Chrysanthemum flowers or Snowflake crystals.
Size: 151mm. |
Image Code F4410 |
Catalogue No.: F4410
Description: Mineral.
Chrysanthemum Stone.
Asia. This natural stone is rare and
unique mineral crystal found in the Hunan province in China, found at the
bottom of the Daxi River in Yonghe town, Liu Yang. These striking black and
white rocks are made of Gypsum clay, Dolomite and Limestone, with internal
crystals of Calcite, Feldspar, Celestite or Andalusite in patterns which
resemble Chrysanthemum flowers or Snowflake crystals.
Size: 205mm. |
F526 and F527 are part of a collection of 152 pieces of
Chrysanthemum Stone.
Image Code F526 |
Catalogue No.: F526
Description: Mineral.
Chrysanthemum Stone.
Asia. This natural stone is rare and
unique mineral crystal found in the Hunan province in China, found at the
bottom of the Daxi River in Yonghe town, Liu Yang. These striking black and
white rocks are made of Gypsum clay, Dolomite and Limestone, with internal
crystals of Calcite, Feldspar, Celestite or Andalusite in patterns which
resemble Chrysanthemum flowers or Snowflake crystals.
Size: 390 x 310mm. |
Image Code F527 |
Catalogue No.: F527
Description: Mineral.
Chrysanthemum Stone.
Asia. This natural stone is rare and
unique mineral crystal found in the Hunan province in China, found at the
bottom of the Daxi River in Yonghe town, Liu Yang. These striking black and
white rocks are made of Gypsum clay, Dolomite and Limestone, with internal
crystals of Calcite, Feldspar, Celestite or Andalusite in patterns which
resemble Chrysanthemum flowers or Snowflake crystals.
Size: 410 x 320mm. |
Opalised Fossils
Image Code F3394 |
Catalogue No.: F3394
Description:.
Mineral. Fossilized Shells (opalised)
. 2 pieces.
Mineraloid
Chemical. Hydrated
silica. SiO2·nH2O.
Opal
is a mineraloid
gel
which is deposited at a relatively low temperature and may occur in the
fissures of almost any kind of
rock,
being most commonly found with limonite,
sandstone,
rhyolite, and
basalt. The water content is
usually between three and ten percent, but can be as high as 20%. Opal
ranges from clear through white, gray, red, orange, yellow, green, shore,
blue, magenta, rose, pink, slate, olive, brown, and black. Of these hues,
the reds against black are the most
rare and dear, whereas white and greens are the most common; these
are a function of growth size into the
red
and infrared wavelengths. Common
opal is truly amorphous,
but precious opal does have a structural element. The word opal
comes from the
Latin
opalus, by Greek
opallios, and is from the same root as
Sanskrit upálá[s]
for "stone", originally a millstone with upárá[s] for slab. Opals are
also
Australia's national gemstone.
Size: 55 x 24mm. |
Quartz Crystal Plate
Image Code N20 |
Catalogue No.: N20
Description: Quartz crystal plates. 18
pieces.
Size: 100x50 up to 1000x350mm. |
General
Image Code F3913
Image Code F3913a |
Catalogue No.: F3913
Description: Very Large Solid
Stone Table. From Asia.
Size: 760 X 420mm. |
Image Code E192 |
Catalogue No.: E192
Description: Trinitite. new Mexico, USA. On 16
July 1945, the first atomic bomb was detonated at the trinity site in new
Mexico. The resultant shock and fireball formed a crater depression
approximately 750m in diameter and scorched and fused the desert sand
resulting in the formation of this green impact glass around the crater.
This material is now very scarce as the impact test site was covered over.
Size: 15mm. |
Image Code G149 |
Catalogue No.: G149
Description: Natural Magnetic Stone.
Size: 138 X 75mm. |
Image Code G218 |
Catalogue No.: G218
Description: Rocky deposit formed when
hydrothermal waters are vented from the sea floor directly from pools of
sub-surface rocks of molten gold, copper, silver and other metals which
cooled and formed "chimneys". The chimneys or hydrothermal vents are laced
with gold, silver, nickel and other elements. They also attract microbial
life that can survive in such toxic, inhospitable environments where
superheated fluids reach temperatures up to 110C at pressures of 150
atmospheres.
Size: 96 x 81mm. |
Image Code G219 |
Catalogue No.: G219
Description: Antarctic Dry Valley Ventifact. A
ventifact is a stone that has received one or more highly polished,
flattened facets as a result of erosion by windblown sand. The facets are
cut in sequence and correlate with the dominant wind direction. As one
surface is cut, the stone may become out of balance and may turn to expose
another surface to the wind. 2 pieces.
Size: 66 x 43mm. |
Image Code G393 |
Catalogue No.: G393
Description: Very unusual stone - found in Death
Valley USA. Has been scientifically studied but origin unknown.
Size: 93 X 58mm. |
Image Code G394 |
Catalogue No.: G394
Description: Very unusual stone - found in Death
Valley USA. Has been scientifically studied but origin unknown.
Size: 115 X 82mm. |
Image Code G395 |
Catalogue No.: G395
Description: Very unusual stone - found in Death
Valley USA. Has been scientifically studied but origin unknown.
Size: 110 X 95mm. |
Image Code G396 |
Catalogue No.: G396
Description: Very unusual stone - found in Death
Valley USA. Has been scientifically studied but origin unknown.
Size: 31 X 35mm. |
Image Code G397 |
Catalogue No.: G397
Description: Very unusual stone - found in Death
Valley USA. Has been scientifically studied but origin unknown.
Size: 68 X 58mm. |
Image Code G398 |
Catalogue No.: G398
Description: Very unusual stone - found in Death
Valley, USA. Has been scientifically studied but origin unknown.
Size: 63 X 39mm. |
Image Code G399 |
Catalogue No.: G399
Description: Very unusual stone - found in Death
Valley USA. Has been scientifically studied but origin unknown.
Size: 88 X 58mm. |
Image Code G403 |
Catalogue No.: G403
Description: Agate with water trapped inside.
Size: 142 X 114mm. |
Image Code G404 |
Catalogue No.: G404
Description: Agate with water trapped inside.
Size: 91 X 85mm. |
Image Code N16 |
Catalogue No.: N16
Description: Deep Sea Rocks x 113 pieces.
Size: mm. |
Image Code N17 |
Catalogue No.: N17
Description: Flower Rocks x 152 pieces.
Size: mm. |
Image Code N18 |
Catalogue No.: N18
Description: Sand Pinnacle Rocks x 34 pieces.
Size: mm. |
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