Joanna MayOct 19, 20181 minIoliteIolite is a magnesium aluminium silicate and is also known by its other name of Cordierite. Iolite can be recognised by its strong...
Joanna MayOct 12, 20182 minAzuriteAzurite is a carbonate mineral produced by weathering of copper ore deposits. It is unstable in open air where further weathering may...
Joanna MayOct 5, 20182 minLapis LazuliLapis lazuli is made up of the blue minerals Lazurite & Sodalite along with white Calcite and Pyrite, the gold sparkle seen in this...
Joanna MaySep 28, 20182 minChrysocollaChrysocolla is a hydrated copper silicate and has a colour ranging from dark blue, through turquoise to green. Its hardness can vary from...