Prehnite 8mm Round Faceted A Grade - 15-16 Inch

Thoughtful delivery service

Easy 30 day returns

Certified Reviews

Description

Prehnite 8mm Round Faceted A Grade - 15-16 InchPrehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South Africa in 1774. Prehnite is translucent to transparent, in colors from light green to yellow green to olive, with occasional inclusions of Black Tourmaline that crisscross the stone in fibrous patterns. It is a phyllosilicate composed of silicon, calcium and aluminum with trace amounts of iron.

These mines are also famous for sourcing North-American Jasper

Opalite is known by several other names

or golden-yellow color of the mineral beryl

The color of Smoky Quartz is due to natural irradiation and traces of aluminum within the cryst

It has a hardness of 8 on the Mohs hardness scale

” Fire Opal is believed to utilize elemental fire to awaken one’s passion

Tourmaline is unusual in that it is both pyroelectric and piezoelectric

this stone

It also serves as the Mohs hardness scale index mineral for a hardness of 8

the only site where it can be found

These needle to like black inclusions of Tourmaline are quite striking within the clear

Apatite can exhibit chatoyancy — an uncommon optical phenomenon in some stones that resembles the light reflection of a cat’s eye