quartzite

The quartzite itself is about a billion and a half years old.

However, the Rock is no longer one solid piece of quartzite.

It is a quartzite ridge formed some 480 million years ago.

The county Courthouse, also made of local quartzite stone, was built in 1899.

The building is the most stylized of the quartzite buildings.

Quartzite mining was for many years the community's main livelihood.

The quartzite is generally regarded as the highest member of the series.

Industrial quartzite resources are 51, 146, 159 and 106 million tons respectively.

Nearby is the oldest single piece on view, a quartzite tool more than a million and a half years old.

Vineyards in the area tend to be quartzite and slate.

The name derives from the red quartzite cliffs surrounding the town.

This causes streaks and lenses to form within the quartzite.

The dome is made up of mostly quartzite along with schist.

This damage was especially severe in the quartzite areas.

"No sweat, man, we could buy our way anywhere with a handful of that quartzite."

Green stone from quartzite quarries is used to roof houses.

The quartzite is pretty pink, a semi-precious stone, and very hard.

The summit is marked by a shattered lump of quartzite.

The building was constructed using quartzite both structurally and in the facade.

Deposits of gold, copper, quartzite, and limestone are found in the county.

Although pure quartzite is white, it usually occurs in shades of pink and red.

Their preferred types of rock are granite, sandstone, and quartzite.

It is the quartzite that gives the island its white, marble-like appearance.

The quartzite, a stone and granite are quite useful.

The quartzite ledge on the southern part of the island is Devonian in age.