IMA mineral species

Reevesite

🪶 Soft, Scratches Easily

Ni₆Fe³⁺₂(OH)₁₆(CO₃) * 4H₂O

Hydrotalcite group mineral.

Reevesite specimen
Reevesite.jpg · Wikimedia Commons (see file page for author & license)

Properties

⛏ Mohs hardness2
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💅🪙🍶🔪💎

Scratches with a fingernail.

🔷 Trigonal✏️ streak yellow
Chemical formulaNi₆Fe³⁺₂(OH)₁₆(CO₃) * 4H₂O
ElementsNi, Fe, O, H, C
Crystal systemTrigonal
Mohs hardness2
Density—
Streakyellow
Color—
IMA symbolRvs
Nickel–Strunz class5.DA.50

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 2: softer than a steel knife, so it scratches easily. Store it apart from harder stones.

🌍 Where it's found

Type locality (where it was first described): Wolfe Creek Crater, Australia

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.