Zircon

Article Abstract:

The hardness of zircon and the snatch of itinerant radioactive uranium (U) and thorium (Th) atoms are proven disadvantages. Sunlight seems to heighten enthusiasm in radioactive elements and hastens the color to brown.

Silicate minerals, Properties, Zircon

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The other side of rutile

Article Abstract:

Synthetic rutile has the potential of being cut into brilliant gem stones, but there have been marketing difficulties with it. A review of synthetic rutile is presented.

Usage, Progestational hormones, Synthetic, Progestational agents

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Rutile

Article Abstract:

The mineral rutile has several virtues, but it has been largely ignored by jewelry makers and mineral collectors. The makeup and use of rutile are discussed.

Public opinion, Varieties, Minerals, Minerals (Geology)

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