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Mineral Family: Oxalate

Mellite – The Honey‑Yellow Oxalate Gemstone

Mellite – The Honey‑Yellow Oxalate Gemstone

May 26, 2026 | Gemstone Encyclopedia | Joaquimma Anna

Mellite is a rare, honey‑yellow organic mineral prized for its warm color and historic use in jewelry. Readers care because it combines unique chemistry, delicate beauty, and a rich folklore of meaning and healing.

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Whewellite – Calcium Oxalate Monohydrate Gemstone

Whewellite – Calcium Oxalate Monohydrate Gemstone

May 3, 2026 | Gemstone Encyclopedia | Joaquimma Anna

Whewellite is a calcium oxalate monohydrate mineral known for its colourless to white prismatic crystals. Though not a common gemstone, its delicate transparency and rarity make it attractive to collectors and niche jewelry designers seeking unique, organic mineral pieces in contemporary designs.

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Recent Articles

  • High Refractive Index Gemstones: Why Some Stones Have Exceptional Brilliance
  • Copper in Gemstones: How Trace Elements Create Neon Colors
  • Zinc Carbonate Minerals: A Guide to the Carbonate Family
  • Preserving Nature’s Art: How to Clean and Store Rare Collector’s Minerals
  • Adamantine Luster: Which Gemstones Have the Highest Brilliance?
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