The diaphaneity of a mineral describes the ability of light to pass through it.

The diaphaneity of a mineral depends on thickness of the sample.

The last C, crystal, is simply a synonym for transparency, or what gemologists call diaphaneity.

I believe (he continues) that 'consciousness,' when once it has evaporated to this estate of pure diaphaneity, is on the point of disappearing altogether.

In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without being scattered.

It can form by direct deposition from a supersaturated solution, which produces true crystalline metatorbernite, with a dark green colour, translucent diaphaneity, and vitreous lustre.

Common distinguishing characteristics include crystal structure and habit, hardness, lustre, diaphaneity, colour, streak, tenacity, cleavage, fracture, parting, and specific gravity.

From the conversation which followed I was able to learn that his neighbor, blond and wan almost to diaphaneity, taciturn and sarcastic was Boulmier, a fellow student.

However, more commonly, it is formed by the dehydration of torbernite, which causes internal stress and breakage within the crystal lattice, resulting in crystals composed of microscopic powder held together using electrostatic force, and having a lighter green colour, opaque diaphaneity, and a relatively dull lustre.