Television Stones - Ulexite

Name: Television Stones - Ulexite
Brand: Teacher Source
SKU: RM-12
Price: 9.95 USD
Availability: InStock
Rating: 4.50 (4 reviews)

SKU #RM-12

(4 reviews)

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Availability: In Stock

$9.95

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When placed upon a printed page, the words can be read through it.

Description

Ulexite - The Television Stone
These amazing mineral specimens of hydrated sodium calcium borate are composed of thousands of fibrous fragments which transmit light. When the polished bottom surface is placed upon a printed page, the words can be read on the top surface, giving the appearance of a television screen. Ulexite is a naturally occurring fiber-optic material -- a fantastic addition for your science table! Each specimen is about 1/2-inch thick with a surface area of approximately 2.5 cm. All naturally occurring Ulexite contains some impurities. Price is for one stone.

Video

Warping TV Rock: interesting polished ulexite sample- the crystals that act as fiber optics seem to have been heated and stressed in this sample giving the transmitted images a twist and warp. Follow the link in my profile for info on where to get this and many other physics toys. #ulexite #rockhound #geology #boron #boronmine #physics #physicstoy #tvrock #fiberoptic #mineral #science #geology #geophysics #geophysicstoy #triclinic #opticalfibers #science #scienceisawesome

A video posted by physicsfun (@physicsfun) on May 15, 2016 at 10:41pm PDT

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Reviews

4 reviews

Television Stones - Ulexite

Dec 28, 2014

The stone arrived on Christmas Eve, and provided great enjoyment for my young nephew.

Duane Kaufman

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Pretty good

Feb 23, 2014

The piece I got was a bit more flawed than the one shown, but certainly demonstrated the fiber-optic nature of the mineral.

John Hughes

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EXTREMELY cool mineral

Jan 4, 2013

My son and I have enless fun with this very fun "rock". We've decided the best use for it is to hold it super close to our eye. The resulting look (as this mineral "pulls" the underlying image to it's surface) is pretty creepy!!!!

Todd

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Great stone, great price

Dec 1, 2012

The ulexite was a gorgeous specimen, for a wonderful price. Thanks so much!

Heather

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