Mica.

This naturally occurring mineral comes in crystals (the bigest ever found being 10 m × 4.3 m × 4.3 m (33 ft × 14 ft × 14 ft) and weighing about 330 tonnes (320 long tons; 360 short tons)). Each crystal has distinct layers, easily separated with a blade into very thin sheets:

^{Shutterstock, free image 2021}

These can then be drilled and wired together into an attractive, translucent form. Neatly it comes in brown, clear or a sort of ethereal blue colour which'd impress people.

Obtaining it in the first place (a closely guarded secret, no doubt) would be done by an open-cast mine, for example on the face of an exposed face of rock that's been worn by glaciation or river-flow. There are many such features in the mountains of Baffin Island, Canada. (AKA Nunavut). It'd be tough going to get to such inhospitable places, and tougher still to mine, as much of the rock is, well rock-hard granite. So it'd be a pretty exclusive article to possess.

Mica.

Known for it's use as a see-through fire-shield in specialists applications, this naturally occurring mineral comes in crystals (the bigest ever found being 10 m × 4.3 m × 4.3 m (33 ft × 14 ft × 14 ft) and weighing about 330 tonnes (320 long tons; 360 short tons)). Each crystal has distinct layers, easily separated with a blade into very thin sheets:

^{Shutterstock, free image 2021}

These can then be drilled and wired together into an attractive, translucent form. Neatly it comes in brown, clear or a sort of ethereal blue colour which'd impress people.

Obtaining it in the first place (a closely guarded secret, no doubt) would be done by an open-cast mine, for example on the face of an exposed face of rock that's been worn by glaciation or river-flow. There are many such features in the mountains of Baffin Island, Canada. (AKA Nunavut). It'd be tough going to get to such inhospitable places, and tougher still to mine, as much of the rock is, well rock-hard granite. So it'd be a pretty exclusive article to possess.

Mica.

This naturally occurring mineral comes in crystals (the bigest ever found being 10 m × 4.3 m × 4.3 m (33 ft × 14 ft × 14 ft) and weighing about 330 tonnes (320 long tons; 360 short tons)). Each crystal has distinct layers, easily separated with a blade into very thin sheets:

^{Shutterstock, free image 2021}

These can then be drilled and wired together into an attractive, translucent form.

Obtaining it in the first place (a closely guarded secret, no doubt) would be done by an open-cast mine, for example on the face of an exposed face of rock that's been worn by glaciation or river-flow. There are many such features in the mountains of Baffin Island, Canada. (AKA Nunavut). It'd be tough going to get to such inhospitable places, and tougher still to mine, as much of the rock is, well rock-hard granite. So it'd be a pretty exclusive article to possess.

Mica.

This naturally occurring mineral comes in crystals (the bigest ever found being 10 m × 4.3 m × 4.3 m (33 ft × 14 ft × 14 ft) and weighing about 330 tonnes (320 long tons; 360 short tons)). Each crystal has distinct layers, easily separated with a blade into very thin sheets:

^{Shutterstock, free image 2021}

These can then be drilled and wired together into an attractive, translucent form. Neatly it comes in brown, clear or a sort of ethereal blue colour which'd impress people.

Obtaining it in the first place (a closely guarded secret, no doubt) would be done by an open-cast mine, for example on the face of an exposed face of rock that's been worn by glaciation or river-flow. There are many such features in the mountains of Baffin Island, Canada. (AKA Nunavut). It'd be tough going to get to such inhospitable places, and tougher still to mine, as much of the rock is, well rock-hard granite. So it'd be a pretty exclusive article to possess.