| 1. | In 1920, he built a prototype of the biaxial wagon.
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| 2. | The optic axis figure of a biaxial mineral is more complex.
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| 3. | Pinalite belongs to the biaxial optical class, and is negative.
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| 4. | In 1920 he build the prototype of the biaxial wagon.
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| 5. | Unlike uniaxial minerals, biaxial crystals have 2 optic axes.
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| 6. | If 2V is acute, the mineral is biaxial positive.
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| 7. | Stellerite has three indices of refraction because it is a biaxial mineral.
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| 8. | The biaxial stress in the surface plane can be measured.
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| 9. | In 1985, Medeco developed a new design under the trade name Biaxial.
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| 10. | This flexibility makes Biaxial attractive to large masterkeyed institutions.
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