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Crushed Olive-Green Opal from Madagascar, Coarse Crush, Gravel Size, 4mm - 2mm

Crushed Olive-Green Opal from Madagascar, Coarse Crush, Gravel Size, 4mm - 2mm

Regular price $6.50 USD
Regular price Sale price $6.50 USD
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Opal is a very common class of minerals that are well known for their brilliant flashy “fire.” However, most naturally-occurring opals are "common" opals, which come in a variety of colors and are generally opaque. This common olive-green opal is from Madagascar and has a beautiful earthy-green tone.

Our coarse material is considered to be pea- sized gravel, ranging between 4 millimeters to 2 millimeters. Please see the corresponding sediment size chart. 

Mineral Properties

  • Mohs’s Hardness: 5 - 6.5
  • Specific Gravity (g/cm3): 1.98 - 2.50
  • Luster: Vitreous, Resinous
  • Color: Olive Green
  • Origin: Madagascar

This product is not man-made, mixed with resin, dyed, or stabilized. Pictures are taken in full sun and material is dry. Size measurements are using the metric system (millimeters), including the metric ruler (cm/mm) as shown in the product photos.

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  • Shipping

    We offer free US shipping on any order over $50. Orders are typically shipped within one to two business days and spend 2-5 days in transit. This means your order should arrive at your doorstep within 4-6 business days -- and often less!

  • Returns

    We offer a hassle-free 30-day return policy. If you wish to return or exchange any product in your order, simply email, and we will help you process the request.


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