[Sca-cooks] Circles (was Period gifts in jars + question)

[Daniel Phelps]

Was written:

As for the quarrying, it really depends on what *kind* of
> stone was being used.  The white quartz used for the outer walls is fairly
soft...

Soft is probably not the correct word to be used to describe quartz.  Quartz
is a hard but brittle mineral, hence the manner in which its crystals
characteristically fracture.  Granite is indeed hard but, much more to the
point, a lot more durable rock.

Daniel