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Minerals of the World
Showing 31–45 of 270 results
- Metal Specimens, Minerals of the World, Uncategorized
CARROLLITE SPECIMEN
A top rare Carrollite Specimen to add to your collection. Stunning bright crystal surfaces with sharp edges. Great size on a Calcite matrix with associated mineral like golden Chalcopyrite and others. A well formed large, Octahedral Carrollite crystal is perched prominently on the matrix. Check out the pics of this specimen on this page.
Dimensions:
8.8cm x 6.3cm x 6.4cm, 340g.
Crystal 15mm x 10.3mm.Location:
Kamoya Mines, Kambove District Haut – Katanga, D.R. Congo, Africa.Carrollite was discovered in Carroll County, Maryland, and recognized as a mineral species in 1852. It is named for Carroll County. Carrollite is collected for its mineralogical rarity, rarity of sizeable crystals, unusual chemical composition as one of the relatively few cobalt-bearing minerals, high degree of cubic-crystal development, and associations in composite specimens with such minerals as quartz and calcite.
CARROLLITE
copper cobalt sulfide
CuCo2S4.SKU: M23C01 - Australian Minerals, Fluorescent Specimens, Gem Crystals, Minerals of the World
FLUORESCENT ZIRCON CRYSTAL 47
Australian Minerals, Fluorescent Specimens, Gem Crystals, Minerals of the WorldFLUORESCENT ZIRCON CRYSTAL 47
Fluorescent Zircon Crystal 47. Also known as a Zircon Bomb. Deep red brown colour in the sunlight and fluorescent yellow under UVA and UVC. It is rare to get yellow fluorescent minerals let alone in Crystal form. A super collectors specimen and rare. Classic location too.
Dimensions:
3.7cm x 2.5cm x 3.3cm, 61g.Location:
Mud Tank, Northern Territory, Australia.Zirconium Silicate:
ZrSiO4.SKU: FL23ZI01 - Metal Specimens, Minerals of the World, Top Shelf
CARROLLITE CRYSTAL
A top rare Carrollite Crystal metal specimen to add to your collection. Stunning bright crystal surfaces with sharp edges. Great size. A well formed large, Octahedral Carrollite crystal that comes on display pad to go straight into your cabinet. Check out the pics of this specimen on this page.
Dimensions:
3.2cm x 2.6cm x 32cm, 48g.Location:
D.R. Congo, Africa.Carrollite was discovered in Carroll County, Maryland, and recognized as a mineral species in 1852. Carrollite is collected for its mineralogical rarity, rarity of sizeable crystals, unusual chemical composition (relatively few cobalt-bearing minerals). Also it’s high degree of cubic-crystal development, and associations in composite specimens with such minerals as quartz and calcite.
CARROLLITE
copper cobalt sulfide
CuCo2S4.SKU: M23C02 - Crystals, Fluorescent Specimens, Metal Specimens, Minerals of the World, Top Shelf, Uncategorized
SCHEELITE CRYSTAL SPECIMEN
Crystals, Fluorescent Specimens, Metal Specimens, Minerals of the World, Top Shelf, UncategorizedSCHEELITE CRYSTAL SPECIMEN
SCHEELITE CRYSTAL SPECIMEN For Sale. An important source of tungsten, rarely cut as gemstones and sought after as mineral specimens. Great crystal formation, a partial stacked or twin octrahedrals, a bit like a pagoda roof. From the classic now closed (1973) Tae Wha Mine, Korea. Fluoresces under short wave or UVC light as shown in four pics. This old stock is getting harder to come by.
CaWO4
Calcium Tungstate.Location:
Tae Wha Mine, Korea.Dimensions:
3.3cm x 2.1cm x 2.7cm, 44g.SKU: FL23SC01 - Crystals, Minerals of the World
AEGIRINE CRYSTAL
Aegirine Crystal For Sale. Lovely lustrous black crystal specimen. An amazing crystal, that looks even better in person. The crystal is black and as hard as Steel. A great collector piece and an interesting and less common mineral.
Location:
Mount Malosa, Zomba Valley, Malawi.Dimensions:
7.4cm x 1cm x 1cm, 14.5g.Sodium Iron Silicate.
Aegirine: NaFe3+Si2O6
SKU: MW5021 - Australian Minerals, Crystals, Minerals of the World
AUSSIE CALCITE ROSETTE
This is a rare quality calcite crystal specimen, Aussie Calcite Rosette. A really lovely piece of calcite, quite a stunning formation with excellent crystal shape. Super collectable for your crystal, mineral, calcite or Aussie specimen collection. This Rosette with bladed crystals is translucent pale ivory with three semi spherical crystal forms. Australian Calcite specimens from Tyndal Quarry like this aesthetically pleasing show piece rarely become available. One pic is back lit to show translucent colour and another show close up with a bit of interesting quarry dust between the crevasses.
Location:
Tyndal Quarry, New South Wales, Australia.Dimensions:
9cm x 6.4cm x 4.4cm, 289g.Calcium Carbonate: CaCO3.
SKU: AM23CA01 - Australian Minerals, Minerals of the World
CHALCEDONY COPPER
CHALCEDONY COPPER
Aussie Chalcedony Copper Specimen with Malachite for your mineral collection. An interesting Copper metal specimen with many associated minerals from the Kapunda Copper Mine. Check out the pics to see details of tiny Quartz crystals on botryoidal Chalcedony. I can also see Cuprite and some other unidentified minerals in this specimen.
Location:
Kapunda Copper Mine, Kapunda, South Australia, Australia.Dimensions:
8.5cm x 1.6cm x 5.5cm, 284g.SKU: AM23CC01 - Australian Minerals, Minerals of the World
CHALCEDONY MANGANESE
Aussie Chalcedony Manganese specimen for sale. An interesting botryoidal grey blue Chalcedony on black Manganese to add to your Aussie collection. Rarely offered for sale and not often collected as it’s not the prettiest looking rock on the ground. From the famous fossicking area of Mount Isa.
Location:
Hardway Mine, Mount Isa, Queensland, Australia.Dimensions:
7cm x 7.4cm x 6cm, 210g.CHALCEDONY
Chalcedony is a variety of Quartz. A general term for all varieties of quartz that are made of microcrystalline varieties of quartz. Examples are the different types of agate, jasper, chert, chrysoprase, onyx, pietersite, etc.
Mentioned by Agricola (1546) of a stone named for the town of Chalcedon, and is a district within the city of Istanbul, Turkey.
MANGANESE
MnManganese is named from a corruption of the latin word for magnestism; magnes, in allusion to its prinicple ore’s magnetic properties. Manganese crystals have yet to be found in nature, therefore it is technically not a mineral. Laboratory grown specimens can look like a natural stone.
The element manganese is an essential element in people’s daily food consumption and has several industrial uses. Manganese is used in steel alloys to increase many favorable characteristics such as strength, hardness and durability. In fact steel can not be produced without manganese; it is an essential ingredient in the process. Manganese is also used to colour glass an amethyst colour. That is not so surprising since manganese is the trace element responsible for quartz’s purple variety, amethyst.
Manganese colouring ability in minerals is well known and appreciated. Manganese is chiefly responsible for the wonderful colours in rhodochrosite, purpurite, rhodonite, serandite and spessartine to name a few. Unfortunately most manganese oxide minerals tend to be black. Manganese is extracted from the ore minerals of pyrolusite and rhodochrosite. Manganese nodules on the sea floor may one day provide an economic ore source.
Properties
Colour is steel or silver grey.
Luster is metallic.
Transparency: Specimens are opaque.
Crystal System is isometric.
Crystal Habits include only lab grown specimens.
Specific Gravity is 7.44 (very heavy for a metallic mineral).
Notable Occurrences include only lab grown specimens.
Best Field Indicators are colour and density.Chek out Manganese Mn specimens for sale here.
SKU: AM23CM01 - Crystals, Minerals of the World, Quartz, Top Shelf
AUSSIE AMETHYST CRYSTAL CLUSTER
A fantastic sparkly Large Aussie Amethyst Crystal Cluster. I have taken the photos for this under Summer cloudy sky to show the crystal form and colour. This cluster is purple quartz with top quality crystals. Beautiful points make this cluster really sparkle and are a mark of its quality. This is a really nice piece of Aussie Amethyst, not too big for posting but with a large presence. Speaking of which it would make an awesome gift to yourself or someone else deserving of a beautiful ancient treasure.
Location:
Kuridala, Queensland, Australia.Dimensions:
11.8cm x 8cm x 4.8cm, 300gQuartz: SiO2.
SKU: AA23A01 - Australian Minerals, Minerals of the World, Rock 'n Slabs, Rocks
ATLANTISITE SERPENTINE STICHTITE ROCK
Australian Minerals, Minerals of the World, Rock 'n Slabs, RocksATLANTISITE SERPENTINE STICHTITE ROCK
An Atalantisite Serpentine Stichtite Rock to add to your collection or for jewel. We reckon this beautiful Aussie stone is under appreciated! It features an unusual combination of bright green and deep purple colouring throughout. This rock has a good amount of deep purple stichtite to green serpentine. When cut and polished it will look absolutely stunning. A solid specimen with good colour ready for Lapidary work. Pics taken outside in natural sunlight, some wet some dry.
Location:
Dundas, Tasmania.Dimensions:
9.4cm x 6.5cm x 3.1cm, 184g.Serpentine:
(Mg,Fe)3Si2O5(OH)4.Stichtite:
Mg6Cr2CO3(OH)16 · 4H2O.SKU: AM23ASS01 - Australian Minerals, Minerals of the World
MUSCOVITE MICA AUSSIE 2
Muscovite Mica Aussie Specimen. Featuring many slim sheets of Mica together. This lovely silvery Mineral possesses special properties like electrical, thermal and electromagnetic insulation and shielding. We have personally measured these properties with a Trifield meter for shielding and Mica is one of the best natural radiation shields. It has been used scientifically for these purposes for well over a hundred years. Mica can be flaky and comes apart in thin sheets much like flexible plastic. It is a popular and unusual mineral that appeals to people of all ages. Muscovite is just one variety of Mica, named for the Russian province of Muscovy, known for its sheet mica. This specimen comes with the small dispay stand shown in one of the pics.
Location:
Mount Isa, Queensland, Australia.Dimensions:
9cm x 7.5cm x 0.6cm, 56g.SKU: AM22MM0-2 - Australian Minerals, Minerals of the World
MUSCOVITE MICA AUSSIE 1
Muscovite Mica Aussie 1 Specimen. Featuring many slim sheets of Mica together. This lovely silvery Mineral possesses special properties like electrical, thermal and electromagnetic insulation and shielding. We have personally measured these properties with a Trifield meter for shielding and Mica is one of the best natural radiation shields. It has been used scientifically for these purposes for well over a hundred years. Mica can be flaky and comes apart in thin sheets much like flexible plastic. It is a popular and unusual mineral that appeals to people of all ages. Muscovite is just one variety of Mica, named for the Russian province of Muscovy, known for its sheet mica. This specimen comes with the small dispay stand shown in one of the pics.
Location:
Mount Isa, Queensland, Australia.Dimensions:
19cm x 16cm x 0.9cm, 347g.SKU: AM22MM01 - Crystals, Metal Specimens, Minerals of the World
SILICON POLYCRYSTALLINE E14
A specimen of pure Silicon Polycrystalline E14. Silicon is Element 14 on the Periodic Table. Very shiny and silver in colour. A relatively light metal to add to your collection.
Location:
Nevada, USA.Dimensions:
5.8cm x 5.6cm x 3.4cm, 81g.Si, Elemental Silicon:
Silicon has been found as a native mineral in volcanic exhalations and as tiny inclusions in gold. Modern techniques can create a single crystal several feet long and up to 10 inches in diameter. The word silicon is from the Latin word for flint.
SKU: M22SP01 - Minerals of the World
SULPHUR SPECIMEN
Bright Yellow Sulphur Specimen. Add a splash of colour to your collection! This specimen has some crystalisation on top and is from a now closed location.
Note this mineral can become a little crumbly if handled too much, best to look!
Location:
White Island, New Zealand.Dimensions:
5.8cm x 4.4cm x 4cm, 88g.SULPHUR.
S.SKU: MW23S01 - Minerals of the World
COBALTOAN CALCITE 2
A gorgeous crimson pink Cobaltoan Calcite 2 specimen with vibrant sparkling colour. Calcite Crystals with cobalt have covered the face of the host rock. One side of the host rock is covered with pink crystals, with the rest of the rock also slightly pink from the cobalt content. An unusual cluster, there aren’t too many pinks in nature and this is a nice large affordable piece. Great for jewellery making or just to admire as is.
Dimensions:
5.7cm x 4cm x 4cm, 148g.Location:
D.R. Congo, Africa.Cobaltoan Calcite
(Ca,Co)CO3A variety of calcite containing Co2+ replacing Ca.
Calcium Carbonate
CaCO3.
Check out more Cobaltoan Calcite for sale here.
SKU: M22CO02
MANGANESE
