AGATE comes from the quartz family and is found in countless shades and colors, from blue to black and from pink to bright firey red. The properties associated with agate can vary based on the color ...

Mineral deposits can create markings that look like forests or mountains, and experts say each stone is distinctive. By Jill Newman When Tarun Adlakha displays a dendritic agate, with its finely ...

Jaspers and cherts are the rocks most often confused with Lake Superior agates Lakers formed when mineral-infused solutions seeped into the gas bubbles of volcanic rocks Lake Superior agates are ...

In the windswept rangelands northwest of Ellensburg, a sky-blue gem awaits the most patient and attentive seekers. Ellensburg blue agates are endemic to the area, in that they cannot be found anywhere ...

In a full day's search on the last day of March, Mike Jacobs of Monticello and I found 121 agates. That seemed a lot to an amateur like me, whose agate hunting has been largely confined to looking ...

GOLDEN VALLEY, Minn. - Minnesota's state gemstone is the Lake Superior agate, and for years it has fascinated those young and old. In response to a viewer question from our kiosk at the Science Museum ...