This clear calcite bends light in a very obvious, very neat way.
Optical calcite, also called Iceland spar, is a clear-to-cloudy calcite known for double refraction. This piece looks like a pale frosted block with clean flat faces and a soft milky glow.
People love it because you can play with light and actually see the split image. It is often kept as a desk specimen or used in crystal collecting for its optical trick.
How to use it
- Hold it up to printed text and watch the split
- Keep it on a windowsill for light play
- Use it as a teaching piece for geology
- Add it to a crystal shelf or desk corner
Care: Calcite is soft and can scratch or dissolve in acid, so keep it dry and handle it gently.
The details
- Stone: Calcite
- Weight: 8g to 28g
- Sold as: Single piece
- Country of origin: Mexico
- Good to know: Known for double refraction.
Optical Calcite (Iceland Spar) - #1 (8g to 28g)
Stone: Calcite
Origin: Mexico
Sold by: Single piece
Attributes:
This clear calcite bends light in a very obvious, very neat way.
Optical calcite, also called Iceland spar, is a clear-to-cloudy calcite known for double refraction. This piece looks like a pale frosted block with clean flat faces and a soft milky glow.
People love it because you can play with light and actually see the split image. It is often kept as a desk specimen or used in crystal collecting for its optical trick.
How to use it
- Hold it up to printed text and watch the split
- Keep it on a windowsill for light play
- Use it as a teaching piece for geology
- Add it to a crystal shelf or desk corner
Care: Calcite is soft and can scratch or dissolve in acid, so keep it dry and handle it gently.
The details
- Stone: Calcite
- Weight: 8g to 28g
- Sold as: Single piece
- Country of origin: Mexico
- Good to know: Known for double refraction.
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