Name 2 uses for each of the following minerals: quartz, olivine and halite.

quartz: is used 4oscillatorsvfor watches and it is a GPS equipment

Olivine: used as casting sand and for removing impurities from steel

halite: used as food seasoning and melt snow

Explanation:

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thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.