Above: Left (Sardinian Jasper from Sardinia), Right (Red Jasper from Brazil)
Jasper is a variety of chalcedony, which is a microcrystalline variety of quartz. The colouring of the stone is determined by the presence of certain mineral impurities.
Haematite impurities result in red jasper, limonite impurities result in brown or yellow jasper, and chlorite impurities result in green jasper.
Hardness: 6-7
Colour: Red, brown, orange, yellow, green
Lustre: Vitreous to dull
Chemical Composition: SiO₂ (with possible impurities of iron oxides or organic materials)
Do you… Frequently or urgently need to urinate Often only pass small amounts of urine Have Pain or burning sensation when urinating These can be symptoms of urinary tract infections. There
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