Apatite From Canoe Lake, Ontario, Canada- Collectors piece, crystal, gift specimen The smoky colour results from

The smoky colour results from free silicon formed from the silicon dioxide by natural irradiation

This piece has a deep purple colour (high grade)

High Grade Polished Blue Agate Geode- Home Decor

Size 3cm by 2

Chalcedony is the form of Quartz that is compact and microcrystalline

Apatite From Canoe Lake, Ontario, Canada- Collectors piece, crystal, gift specimen The smoky colour results fromApatite From Canoe Lake, Ontario, Canada Collectors piece, crystal, gift Weight 20g Size 3. 5cm by 2. 5cm Thickness 3cm Apatite is a calcium phosphate and quite a rare tourmaline variety. It comes in many colours and forms, and its often confused with many other minerals, such as Aquamarine and Fluorite. It can be opaque, translucent, or transparent. Its colours range from white to greenish yellow, brown and violet! In recent times blue apatite has