What is Schiller effect?

Schiller effects are the result of thin microscopic inclusions within a translucent mineral, usually as exsolution lamellae, which refract and reflect incident light. This is due to the presence of a miscibility gap, causing exsolution of orthoclase from the plagioclase host during cooling.

Is Sunstone a type of quartz?

Sunstone belongs to the very large group of feldspar minerals, which are actually the most abundant minerals on earth, followed secondly by quartz.

What stones have Schiller?

“Schiller,” which is German for shining or twinkle, describes the gemological effect of aventurescence which is caused by light reflecting off tiny mineral platelets inside the gemstone. The Schiller effect is seen in several stones such as Sunstone and Aventurine Quartz.

What is Schiller in crystals?

Schiller is also known as play of color, in which the interior of a stone displays flickers of color as it is moved in the light. Opal is especially valued for this trait. There is no actual object inside the stone. This special effect arises from light interference within the microstructure of the mineral.

Are Sunstones valuable?

Accompanying value information: Pale yellow to colorless, non-phenomenal Oregon sunstones, whether native-cut or calibrated stones, may go for a few dollars per carat to $20 per carat for a custom cut. Pinks and tans, with and without a schiller effect, commonly range up to $50 per carat, depending on the effect.

What is the most reflective gem?

With a BRI of 2.65 to 2.69, moissanite is the world’s most brilliant gemstone. This means the speed of light refracting in moissanite is 2.65 to 2.69 times slower than the speed of light in the air….What makes moissanite more brilliant than other gems?

Gemstone	Refraction Index
Emerald	1.56 – 1.60

What gemstone has the most fire?

Among the well-known gemstones, those with the greatest brilliance and fire include diamond, zircon, sphene, sphalerite, demantoid garnet, spessartite garnet, sapphire and tanzanite.

What Stone shines more than a diamond?

Moissanite Brilliance
Moissanite Brilliance Moissanite has a refractive index of 2.65-2.69, which is higher than a diamond. However, a diamond reflects light in more complex ways, via brilliance, dispersion and scintillation, which give the stone its legendary sparkle.

What is Schiller effect? Schiller effects are the result of thin microscopic inclusions within a translucent mineral, usually as exsolution lamellae, which refract and reflect incident light. This is due to the presence of a miscibility gap, causing exsolution of orthoclase from the plagioclase host during cooling. Is Sunstone a type of quartz? Sunstone belongs…