Properties of heat treated amethyst8/14/2023 ![]() ![]() According to this scale, a stone can scratch any other mineral with a lower score. If you’re unfamiliar, the Mohs scale of hardness determines a stone’s hardness by measuring how scratch-resistant it is. Hardnessīoth stones rate 7 on the Mohs scale, just like other forms of quartz. Both stones’ range from transparent to translucent and have no evident cleavages. Natural citrine (left), heat-treated citrine (middle), amethyst (right) Pattern and ClarityĪs amethyst and citrine are basically the same stone, they have the same clarity as well. The phenomenon results in a stone named ametrine. In some occurrences, citrine and amethyst can occur together in one crystal. Natural citrine is one color all throughout, whereas heat-treated citrine will have a white base color. Natural citrine is pale orange or yellow with brown to dark brownish tints.Īpart from its color, you can look at the base color of the crystal to determine if it’s natural or heat-treated citrine. The citrine produced is golden with brown to dark brownish tints. ![]() This can be done by the Earth’s mantle (natural citrine) or by sellers (heat-treated citrine).Įven natural citrine can sometimes be heat treated by sellers, as natural citrine is pale and heating intensifies the color. On the other hand, citrine is created when amethyst or smoky quartz is heated to high temperatures to produce a yellow quartz. The most valuable amethyst variety is the deep Siberian amethyst whose primary hue ranges from 75-to 80%.Īmethyst will also display blue or red secondary hues dependent on the light they are viewed on and fade color when overly exposed to light or heat sources.Īlso Read: Pink Amethyst vs. Amethyst colors range from light to dark purple and on some occasions pink. The crystal’s color variety is a result of trace elements, iron, and transition metals within its structure. ColorĪmethyst comes in different shades of purple. However, there are also other physical differences. The easiest way to spot the difference between these two stones is by looking at the color. Heat Treated Amethyst vs Citrine – How To Tell The Difference?
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