RockHoundBlog

Nittany Mineralogical Society annual gem & mineral show

Filed under: Coming Events,regular postings — Gary June 27, 2007 @ 10:34 pm

Mine Design will be exhibiting at the following club sponsored show.

June 30 through July 1, State College, PA

Nittany Gem & Mineral Show

Club-Retail Show – Free admission. The Nittany Mineralogical Society is
having its annual gem & mineral show on June 30th & July 1st. There will be
quality vendors, demonstrations, educational displays and jewelry making
classes. For more information, go to www.Lodins.com
< http://www.lodins. com/>

Location: Mt. Nittany Middle School, 656 Brandywine Drive, State College, PA
16801

Hours: Sat. 10 AM to 6 PM & Sun. 11 AM to 5 PM

Promoter: Nittany Mineralogical Society

Featured Gems:

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Interesting- Thick Layer of Magma Found Under American Southwest

Filed under: regular postings — Gary June 23, 2007 @ 12:02 am

Scientists have spotted a thick layer of melted rock beneath the Earth’s crust that could be part of a fluid band of hot magma circling the globe. The magma ring has until now remained a theory.

The molten-rock layer is 10 miles thick and can’t be seen, felt or smelt from the surface. Researchers Daniel Toffelmier and James Tyburczy of Arizona State University found the layer using a relatively new technique that measures changes in weak electrical currents flowing through the Earth’s mantle rock.

The current is created when the solar wind, a continuous flow of charged atomic particles emitted by the sun, interact with Earth’s magnetic field, called the magnetosphere.

The chemical make-up of the rocks affects their conductivity. By measuring changes in the current at different depths, the scientists were able to detect distinct rock layers, including the “invisible” magma layer.

“Rocks are semiconductors,” Tyburczy said. “And rocks with more hydrogen embedded in their structure conduct better, as do rocks that are partially molten.”

The discovery, detailed in the June 21 issue of the journal Nature, partially confirms a recent hypothesis by two Yale University geoscientists, which states that a band of molten magma circles the Earth about t 250 miles beneath the planet’s crust, near a hypothetical “transition zone” separating the planet’s two mantle layers.

The idea is that as the rock rises from the lower mantle to the upper mantle, it expels all the water in its crystal structure and melts.

The researchers detected the molten layer beneath Tucson, Arizona. They aren’t sure how far the sheet extends, but say there is little chance any of the molten rock will erupt at the surface.

The discovery only partially confirms the Yale scientists’ idea, since it reveals a molten magma layer only beneath one spot on the Earth. But “finding that sheet of melt-rock tells us we’re on the right track,” Tyburczy said.

Gemstone Healing Properties- Crystals & Stones Are Powerful Collectors Of Energy.

Filed under: regular postings — Gary June 21, 2007 @ 9:56 pm

This was sent in by Crystal (Great name for a Rockhound :) )

Each crystal has a higher or lower density vibration. This makes certain crystals & stones powerful collectors of energy.

Whenever you are in a situation where you are about to buy stones or crystals, it is important to physically touch different ones before buying them. It helps to close your eyes and really “feel” the stone – concentrate on how the stone resonates with you, and select the ones that are special.

Here is the most commonly used stones and there healing properties.

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Great rockhound domain for sale: rockhounds.org

Filed under: regular postings — Gary June 15, 2007 @ 8:56 am

Does your Rockhound organization need a great domain name?  Rockhounds.org is for sale!   :)   Email me if interested.

thanks, Gary.

Teen finds 2.93-carat stone at diamond park !

Filed under: Great Finds-specimens,regular postings — Gary June 7, 2007 @ 11:23 pm

Associated Press

MURFREESBORO_diamond

MURFREESBORO, Ark. — Walking along a path taken by thousands of others at the Crater of Diamonds State Park, Nicole Ruhter noticed something everyone else had missed — a tea-coloured, 2.93-carat diamond.

Ruhter, 13, of Butler, Mo., said she would name her find the “Pathfinder Diamond” after pulling what she described as a broken pyramid from the ground. Her parents, grandparents, brother and two sisters had already spent the day digging in two other fields before heading down the path just after 7 p.m. Tuesday.

“We were walking through the path and I just walked and saw this little shine,” said Ruhter, who has just finished the seventh-grade. “We wrapped it up in a little dollar bill and took it back and showed them.”

Ruhter said both park rangers and her vacationing family got excited about the diamond, found along a service road. So far this year, visitors to the park have found 332 diamonds, three of them Tuesday alone, said Bill Henderson, assistant park superintendent.

While the park does not do appraisals, Henderson said experts appraised a 4-carat diamond found previously in the park between US$15,000 to $60,000. Henderson said Ruhter’s diamond did have chips and several imperfections.

“It’s a nice diamond,” he said. “It looked like it had been broken off at one side.”

For now, Ruhter and her family said they’d keep the diamond for a time and find out how much it is worth before attempting to sell it.

“I was kind of praying to God. I was saying, ‘I don’t care if it’s worth whatever it’s worth, I don’t care if it’s a tiny little sliver of something, I just want something,’” Ruhter said. “Ten minutes later, I just found it.”

Crater of Diamonds State Park is the world’s only diamond-producing site open to the public and visitors are allowed to keep the gems they find. On average, two diamonds are found each day at the park.

The largest of the 25,000 diamonds found since the state park was established in 1972 was the 16.37-carat Amarillo Starlight, a white diamond found by a visitor from Texas in 1975.