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A'a' Bubble Black Basalt, aka Bubble Basalt, is unusually solid and bubble-filled black basalt. It’s excellent for aquariums and terrariums, and highly prized for its visual and physical properties. These dense stones come from Central Western Utah and represent mafic (borderline ultramafic) rocks with high thermal capacity and exceptional stability.
These volcanic stones are formed in deep Earth environments, often emerging from hotspot regions where magma has held enough heat to remain buoyant all the way to the surface. Their heat-holding capability makes them ideal for use in thermal mass stoves, beds, or home heating systems.
The distinctive bubbles were created as gases expanded from the lava just before solidification. This material also cuts and polishes beautifully—often showing a metallic interior shine.
Chemical Formula: 37.76–59.64% SiO₂, 10.10–20.93% Fe₂O₃, 11.77–14.32% Al₂O₃, 5.57–14.75% CaO, 5.37–9.15% MgO, 1.40–3.34% Na₂O
Metaphysical: Root Chakra
| Quality | Size | 1<20 lbs | 20<100 lbs | 100<500 lbs | 500<1000 lbs | 1000 lbs | TON |
|---|---|---|---|---|---|---|---|
| Mine Run Raw | Mixed | $7.00 | $5.60 | $4.90 | $4.20 | $3.50 | $2.80 |
| B Quality | |||||||
| Mixed | $5.60 | $4.48 | $3.92 | $3.36 | $2.80 | $2.24 | |
| Small 1-3 in | $6.30 | $5.04 | $4.41 | $3.78 | $3.15 | $2.52 | |
| Med 3-5 in | $6.30 | $5.04 | $4.41 | $3.78 | $3.15 | $2.52 | |
| Large 5-10+ in | $6.30 | $5.04 | $4.41 | $3.78 | $3.15 | $2.52 | |
| A Quality | |||||||
| Mixed | $9.10 | $7.28 | $6.37 | $5.46 | $4.55 | $3.64 | |
| Small 1-3 in | $9.80 | $7.84 | $6.86 | $5.88 | $4.90 | $3.92 | |
| Med 3-5 in | $10.50 | $8.40 | $7.35 | $6.30 | $5.25 | $4.20 | |
| Large 5-10+ in | $11.20 | $8.96 | $7.84 | $6.72 | $5.60 | $4.48 | |