Search Archived Mineral Specimens
- Availability
- Sold
- Locality
- Viloco, Araca dist., La Paz dept., Bolivia
- Formula
- SnO2
- Size
- SmCabinet 3x7x3cm
- Tagged
- Holiday Sale
Dark rootbeer-brown Cassiterite crystals with a good adamantine luster with Quartz set on a piece of matrix that sets well without aid. The largest crystal is 2.5cm and is apparently twinned.
- Availability
- Sold
- Locality
- Monserrat, Poopó prov., Oruro dept., Bolivia
- Formula
- SnO2
- Size
- Miniature 5x3.5x2cm
Most Cassiterite worldwide shows blocky, equant crystals not needle-like crystals like these. This is a known habit, but is uncommon. These groups are to 2mm.
- Availability
- Sold
- Locality
- Yaogangxian mine, Chenzhou, Hunan prov., China
- Formula
- SnO2
- Size
- SmCabinet 6.5x4x2.5cm
- Tagged
- tin
The more I shot this specimen the more I liked it. There are numerous, excellent crystals amongst a nest of Muscovite. The crystals are from 5 to 10mm. There is also some purple Fluorite on the backside.
- Availability
- Sold
- Locality
- Pendarves mine, Camborne, Cornwall, England
- Formula
- SnO2
- Size
- SmCabinet 6.5x5x3cm
- Tagged
- tin
An older label only states the occurence of Chlorite for the specimen. However viewing this piece closer you will discover incredible, lustrous, sharp, deep amber-brown crystals of Cassiterite to 3.5mm. The Sam eller label also states that the specimen is from the "Stanniferous Vein Section".
- Availability
- Sold
- Locality
- Taylor Creek Tin dist., Sierra Co., New Mexico, United States
- Formula
- SnO2
- Size
- Thumbnail 2.5x2.5x2cm
- Tagged
- ore mineral , tin
There are very few if any tin mines in the USA. There are plenty of Cassiterite occurences, but this place actually produced some tin - about 1000 pounds. That's nothing in the tin world, but aside from the scarce deposits in the Black Hills, there is very little else on record in terms of viable tin mining. These deposits occured in an area roughly 450 square miles and first found as placers. The prospectors later discovered stringers in Tertiary rhyolite.
This specimen is a one of those "nuggets", what was once termed "wood tin". Looks like hematite or goethite eh?
- Availability
- Sold
- Locality
- North Dartmoor Consols, Lydford, Devon, England
- Formula
- SnO2
- Size
- Miniature 5x4.5x2.5cm
- Tagged
- tin
Exceptional crystals of Cassiterite forming equant and elongated prismatic crystals to 2.5mm. All of them show a nice golden brown color with translucency.
