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Basalt

Basalt a dark, fine-grained volcanic rock that sometimes displays a columnar structure. The stone is usually grey to black and fine-grained due to rapid cooling of lava at the surface of the earth.  More than half of the ocean floor is basalt! It is one of the most abundant volcanic rocks on Earth

3 products


  • Rough Black Basalt / 1.5-2.5" AVG - 1 KILO LOT - Crystal River Gems Rough Black Basalt / 1.5-2.5" AVG - 1 KILO LOT - Crystal River Gems

    Rough Black Basalt / 1.5-2.5" AVG - 1 KILO LOT

    1 review

    Quantity: 1 kilogram Average size range: 1.5 to 2.5 inches Basalt is a fine-grained igneous rock that forms when lava rapidly cools and solidifies, and forms about 90% of all volcanic rock on Earth. Basalt is so common, in fact, that it can also be found on other planets with volcanic activity like Venus and Mars.

    $9.93

  • Black Basalt Rough Pieces (Size 1.5 to 2.5 Inches) Crystals Minerals Gemstones - Crystal River Gems Black Basalt Rough Pieces (Size 1.5 to 2.5 Inches) Crystals Minerals Gemstones - Crystal River Gems

    Black Basalt Rough Pieces (Size 1.5 to 2.5 Inches) Crystals Minerals Gemstones

    Rough Black Basalt PiecesUniqueness Guaranteed: Every item is one-of-a-kind, making them ideal for all projects or designs.Listing is for (choose your quantity, 1 piece, 2 pieces, 3 pieces, 4 pieces, 5 pieces, 10 pieces) Avg Size Range: (1.5 to 2.5 inches)Material Origin: (India)Basalt is a fine-grained igneous rock that forms when lava rapidly cools and solidifies, and forms about 90% of all volcanic rock on Earth. Basalt is so common, in fact, that it can also be found on other planets with volcanic activity like Venus and Mars.Custom Requests: Have specific preferences?Leave a message with your order, and we'll do our best to accommodate your requests if possible.Handmade items vary in size, shape, and color when selected randomly (the highest quality items are chosen first). They'll be as beautiful as those in the photos.

    $5.21 - $11.49

  • 1 LB. LOT - Black Basalt Rough Rock from India - Crystal River Gems 1 LB. LOT - Black Basalt Rough Rock from India - Crystal River Gems

    Rough Black Basalt / 1.5-2.5" AVG - 1 LB. LOT

    Quantity: 1 pound Average size range: 1.5 to 2.5 inches Basalt is a fine-grained igneous rock that forms when lava rapidly cools and solidifies, and forms about 90% of all volcanic rock on Earth. Basalt is so common, in fact, that it can also be found on other planets with volcanic activity like Venus and Mars.

    $4.97

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