Colour: White, Yellow, Blue, Grey, Colourless
Lustre: Vitreous, Pearly
Characteristics: Can display many colours or be milky, opalescence, Iridescence, Schiller
Location: USA, Sri Lanka, Madagascar, Canada, Finland etc
Origin: Igneous and Metamorphic rocks
Feldspar is the most abundant group in the earth and comprises of Labradorite, Moonstone, Orthoclase, Sunstone, Peristerite, Amazonite.
Iron causes the yellow colours, Lead causes the blue and green, Hematite causes the play of light in Sunstone.
Moonstone and Labradorite are the two most popular members of the group and can display a wonderful sheen and iridescence.
further reading >> Stone and mineral index
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