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BLACK OPAL SERPENT RING
Quality Black Opal Serpent Ring set in Sterling Silver .925. This Serpent says style with quality detail from a silver smith and the miner from Lightening Ridge.
Size or , g.
Stone cm x cm x cm.
Opal.
SiO2 nH2O Hydrated Silicon Dioxide.
Boulder Opal is a variety of Precious Opal found in Queensland, Australia, as cracks or coatings in and around ironstone/sandstone boulders. Opal has been a popular gem for many centuries and has a very interesting structure. The name opal probably is derived from the Sanskrit name for precious stone- upala. Opal is considered a mineraloid because this structure is not truly crystalline. The chemistry of Opal is primarily SiO2 and varying amounts of water. The amount of water varies from 5 -10% and greater. This water can help geologists determine the temperature of the host rock at the time the opal formed.
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- Uncategorized, Metal Specimens, Minerals of the World, Top Shelf
CARROLLITE
A top rare Carrollite metal specimen to add to your collection. Stunning bright crystal surfaces with sharp edges. Great size on a Calcite matrix with associated mineral like golden and rainbow Chalcopyrite and others. A well formed large, Octahedral Carrollite crystal is perched prominently on the matrix of this specimen. Check out the video of this specimen on this page.
Dimensions:
9.9cm x 6.1cm x 4.3cm, 308g.
Crystal 14.5mm x 16mm.Location:
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: M22C01 - Uncategorized, Crystals, Fluorescent Specimens, Metal Specimens, Minerals of the World, Top Shelf
SCHEELITE CRYSTAL SPECIMEN
-5%
Uncategorized, Crystals, Fluorescent Specimens, Metal Specimens, Minerals of the World, Top ShelfSCHEELITE 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 - Uncategorized, Metal Specimens, Minerals of the World
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 - Uncategorized, Crystals, Minerals of the World
GREEN TOURMALINE CONSTRUCT
GREEN TOURMALINE CONSTRUCT. Just to be quite clear this is not a natural specimen. It is an example of fakery, aka fake. This is a good bad and ugly specimen. Good is the quality of a beautiful green natural Tourmaline crystals, worth the money. The bad is someone intended to palm this fake off as a natural specimen. It has been glued to conceal a broken crystal and they did a pretty bad glue job too. A typical type of specimen and the location is also renowned for similar fakes. The large green Tourmaline crystals is glued into where another different Tourmaline crystal broke off. All the crystals are real and the big one is great.
This is a construct where a specimen has been glued into a matrix. It was in the collection for many years and originally purchased from a retired dealer. Hopefully you all look at your specimens in particular gem specimens with a 10 x mag and strong light. Also fluorescent UVA and UVB can be helpful in detecting glues. They are well knowledged in their art and sprinkle crystal dust on top of the glue to conceal it. One of the give always on this glue job is the angle is wrong in orientation with the quartz crystal. Repaired specimens are OK (to some people) and always labeled as such repaired or R in the title. This specimen sits freely on a perspex stand.
Dimensions:
6.6cm x 5cm x 4cm, 75g.
Location:
Paprok, Afghanistan.SKU: n/a
