When light bounces off a mineral sample, several properties can be assessed based on how the light interacts with the mineral. Here's what each term generally describes:
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Refractive: This indicates that the mineral has the ability to bend light. All minerals can refract light to some extent, but this term usually refers to the refractive index, which is a specific property.
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Translucent: This means that light can pass through the mineral, but it is diffused, and objects on the other side cannot be clearly seen. Translucent minerals allow some light to pass but not enough to see through them clearly.
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Reflective: This describes minerals that bounce light off their surface effectively. Reflective minerals often have a shiny appearance and can reflect light similarly to a mirror.
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Transparent: This means that light can pass through the mineral clearly, allowing objects behind it to be seen distinctly. Transparent minerals do not significantly diffuse light.
If light bounces off the mineral sample effectively and creates a shiny appearance, you would most likely characterize the mineral as reflective. However, if some light passes through without significant distortion, then it might also be partially transparent. The specific observation would depend on how the light interacts with the mineral.