Blue Rocks

A close up view, about 12mm x 8mm, of the edge of a blue agate slice sitting on top of a slice of blue fluorite.

 

Agate is a rock consisting primarily of cryptocrystalline silica, chiefly chalcedony, alternating with microgranular quartz. It is characterized by its fineness of grain and variety of colour. Although agates may be found in various kinds of host rock, they are classically associated with volcanic rocks and can be common in certain metamorphic rocks (Wiki).

 

Fluorite is a colourful mineral, both in visible and ultraviolet light, and the stone has ornamental and lapidary uses (Wiki).

 

Macro Mondays: Rock

 

Thank you all for your views, faves and/or comments! It’s greatly appreciated! Happy MM! :-)

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Uploaded on September 10, 2018
Taken on September 9, 2018