Best Silicate

Rare beryllium aluminum silicate mineral named from Greek for 'good fracture' due to its perfect cleavage; gem-quality crystals come primarily from Brazil and Zimbabwe.

Rare beryllium silicate mineral prized for its high refractive index and brilliance; notable sources include Russia's Ural Mountains and Minas Gerais, Brazil.

Calcium aluminum silicate mineral also called vesuvianite, named after Mount Vesuvius where it was first scientifically described in 1795 by Abraham Werner.

Zinc silicate mineral named after King William I of the Netherlands; notable for its intense green fluorescence under UV light, classically from Franklin Mine, New Jersey.

Aluminum silicate mineral forming one of three polymorphs with andalusite and kyanite; gem-quality material occurs in Sri Lanka, Myanmar, and Tanzania.

Potassium sodium lithium iron titanium silicate mineral forming black prismatic crystals with deep red internal color; first described in 1893 from Greenland.

A relatively rare chatoyant gemstone from the scapolite mineral group, with notable gem-quality examples sourced from Myanmar and Tanzania.

Andalusite is an aluminum nesosilicate mineral named after Andalusia, Spain, known for its distinct pleochroism and chiastolite cross-shaped variations.

Zircon is a nesosilicate mineral highly regarded for its brilliant luster and high refractive index, with notable specimens historically sourced from the alluvial deposits of Cambodia.

A sodium lithium iron titanium silicate mineral found primarily in San Benito County, California, USA, occasionally faceted as a chatoyant collector's stone.

Scapolite is a group of rock-forming silicate minerals frequently found in regional metamorphic rocks, noted for producing yellow and violet gemstones.

Charoite is a rare silicate mineral distinguished by its bright purple color and swirling patterns, officially named in 1978 and found only in the Sakha Republic, Russia.

A calcium magnesium aluminum silicate mineral named after American geologist Raphael Pumpelly, occurring in low-grade metamorphic rocks and rarely faceted as a gem.

Kyanite is an aluminosilicate mineral notable for exhibiting two distinct hardnesses depending on the axis, and it is widely mined in Nepal to produce vivid blue gemstones.

Dumortierite is a fibrous aluminum borosilicate mineral first described in 1881 from specimens found in France, prized for its deep blue color.

Epidote is a common calcium aluminum iron sorosilicate mineral that occurs in various geological environments, notable for its distinct pistachio-green color.

Rare radioactive calcium thorium silicate mineral first described in 1955 from Sri Lanka and named after F.L.D. Ekanayake; typically metamict due to radiation damage.

Prehnite is a calcium aluminium phyllosilicate mineral first described in South Africa in 1788, prized for its pale green hue, and notably sourced from the Wave Hill region of Australia.