1.5" Pristine Fluorapatite Crystal Cluster with Muscovite - Portugal

Fluorapatite is the most common variety in the apatite group. It forms early in almost all igneous rock as small, microscopic crystals. It can display a wide variety of colors and can be confused with beryl, phenakite and milarite. Often forming bright, lustrous crystals with hexagonal faces and off-center terminations. They are found in vugs, often associated with quartz and calcite. Most complete crystals are around an inch in length, though larger crystals up to about 4 inches long have been found.

Muscovite is a phyllosilicate mineral of aluminium and potassium. It has a highly perfect basal cleavage, yielding remarkably thin laminæ that are often highly elastic. It can be colorless or tinted through grays, violet, or red, and can be transparent or translucent. Fuchsite and mariposite are green varieties of muscovite, owing their green color to chromium impurities. Alurgite is a manganese-bearing, purple to reddish variety of muscovite.