Question

which mineral property is tested using a glass slide?
texture
hardness
cleavage
fluorescence

Explanation:

Hardness is a mineral property that can be tested using a glass slide. The Mohs scale of hardness is used, where glass has a hardness of about 5.5. If a mineral can scratch the glass slide, its hardness is greater than 5.5. Texture is about the feel or appearance of a mineral's surface, cleavage is about how a mineral breaks along planes, and fluorescence is a property where a mineral glows under ultraviolet light. None of these are typically tested with a glass slide in the same way as hardness.

Answer:

hardness