calcite and tiny terminated quartz crystals

Tektites are natural glass of meteoric origin that are found between a narrow equatorial belt of 80 degrees wide

Shape: Oval Cabochon

The known total weight is approximately 100 Kg and this is 1 of 392 approved meteorites classified as CM2

Scolecite forms as vertically striated

Spinel Crystal in Marble Host | Red Spinel | 212.7 gr, 1,063.5 ct | Mogok, Myanmar | SO24 Prasiolite calcite and tiny terminated quartzThis is a beautiful Spinel crystal in marble host from Myanmar (Burma). Spinel comes in a variety of colors, including red, pink, blue, purple, orange, and black. It is often mistaken for other gemstones due to its resemblance to rubies and sapphires, especially red spinel, which historically has been confused with ruby. Spinel is found in various regions around the world, including Myanmar (formerly Burma), Sri Lanka, Tanzania, Madagascar, Vietnam,