Libyan Desert Glass Small Natural Raw Crystal Specimen Black Friday Tumbles such as a double terminated

such as a double terminated crystal point or a crystal wand

A large crocodile carving made of Banded Onyx Calcite with an incredible mix of earthy coloured Calcites such as greens

A rare banded Blue Opal from Owhyee

sometimes twinned or clustered

Rare blue Cavansite crystal growth on Calcite and Zeolite matrix crystal and rock

Libyan Desert Glass Small Natural Raw Crystal Specimen Black Friday Tumbles such as a double terminatedLibyan Desert Glass is a natural silica glass, a type of tektite, formed about 28 29 million years ago from the intense heat of a powerful, likely extraterrestrial, impact event in the Sahara Desert. This specimen is approx. 3. 7cm x 2. 1cm x 1. 4cm.