Grape Agate is the name given to this purple, Botryoidal form of Chalcedony. This beautiful material is from Manakarra Beach, West Sulawesi, Indonesia. The deposit was discovered years ago but the Indonesian government prohibited its collection and export until late in 2015; so it is fairly new to the global market.
Colour: Varying shades of purple and green
Luster: Soft matte/Waxy
Crystal System: Botryoidal/Round
Chemical Formula: SIO2
Chalcedonic quartz, potassium,
aluminium, calcium and magnesium.
Hardness (Mohs): 6.5-7
Specific Gravity: 2.66
Refractive Index: 1.544-1.553
Origin of this stone: Sulawesi, Indonesia.
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