Chalcedony Tanzanite Tree trunks

Tree trunks

Fluorite crystals are well shaped

narrow shape resembling the interior and pitched roof of a cathedral

but most specimens have vivid color due to various impurities and are often fluorescent

which is a brilliant mineral in the aragonite family known for its twinning crystalline structure and delicate form

Chalcedony Tanzanite Tree trunksA silicone based mineral closely related to quartz and agate, Chalcedony has a unique crystalline structure that gives it an enormously variable appearance. This mineral forms in a similar fashion to agates and geodes but due to heat and pressure at the time of formation results in a distinct look and almost silky texture. Chalcedony can be found in a range of colors but most often occurs in semitransparent or white. It has a long archaeological