|Uncut diamond crystal from Arkansas.|
Liddicoatite with a zoned green and pink interior from Antsirabe, Madagascar.
|Elbaite candelabra (Tourmaline family)|
Beryl with Quartz - Blue beryl crystal on microcline.
|Pear-cut ametrine from Brazil|
Calcite with Pyrite - From Brush Creek mine, Reynolds County, Missouri. Calcite is a ubiquitous gangue mineral in Mississippi Valley type lead zinc deposits. This mine was closed in 2001 after 22 years of operation.
A round brilliant-cut citrine.
Clinohumite is a magnesium silicate commonly found as tiny indistinct grains. However, large euhedral crystals are sought after by collectors and can be cut into beautiful gemstones.