touchstone
lydite

Touchstone's voice came in from the other end of the hall.

But they have become far more than just an educational touchstone.

It has become sort of a touchstone and something that people know, he said.

That's where you talk about the growth and the little touchstones along the way.

He had also come to consider the place a neighborhood touchstone.

Maybe that season will serve as a touchstone for this one.

There is however one simple touchstone which works in nine cases out often.

That love is always with me here - these are the touchstones of my life.

I hope to be a touchstone for people, a route to a new way of thinking.

But the issue is a touchstone for Obama’s opponents as well.

The Metropolitan has been a touchstone for him over the years.

But the team has already checked one very important cultural touchstone.

You appear to me to be the very touchstone of responsibility.

Touchstone remained in that position until his death 29 years later.

There aren’t a lot of historical touchstones here, especially for college.

And isn't that why the novel is a great American touchstone?

"I do think you have to give kids these touchstones," she said.

Well, there is always one thing; it will serve as a touchstone.

But the company had no idea it would become a pop culture touchstone.

To us, the private sector was the touchstone for the country to move ahead.

But even more important is making sure his food remains a touchstone of tradition.

It has also been a touchstone case for the Court's standard of review.

The Park became a touchstone for me, a constant in a world where everything changed.

It seemed to her as though she had at last found the touchstone of conduct.

The piece has become a touchstone for the Center and readers all over the country.

A touchstone is a small tablet of dark stone such as fieldstone, slate, or lydite, used for assaying precious metal alloys.

Such varieties of jasper are also informally known as lydian stone or lydite and have been used as touchstones in testing the purity of precious metal alloys.

The same problem exists with touchstones, or more accurately basanite or lydite, which is a flinty jasper or finely crystalline quartzite, black or dark grey in colour, used to test gold-silver alloys for their gold content.

Touchstone is also known as lydian stone or lydite.