Smithsonian Rock & Gem Dig


Smithsonian Rock & Gem Dig

Details

SKU
YG-10003265
In stock
6 available
Weight
2.10 lbs
Retail Price
$14.99
Our Internet Price
$11.04 (Save 26%)

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Quantity
(from 1 to 6)


Dig for GENUINE semi-precious gemstones and minerals using the included excavation tools then identify your treasure using the included guide. Set includes a block containing multiple stones, mallet, dowel, goggles, streak plate, magnifying glass and instructions. Ages 8 and Up.
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  • Mineral Hardness Scale Ruler

    The Mineral Hardness Ruler is a stimulating visual aid, educates in one phase of mineralogy, and provides the standard ruler measurement scales needed in classes.


    Rockhounds, mineral enthusiasts, students, teachers, geologists, and any one interested in rocks and minerals will find the Mineral Hardness Ruler a handy visual aid for quick information on mineral hardness.



    The two-sided, flexible, glossy, vinyl ruler consists of five scales: three measurement scales and two mineral hardness scales. The measurement scales are in standard ruler measurements of tenths of inches, sixteenths of inches, and millimeters. Mohs' relative hardness numbers are integrated into the inch scales, while a separate scale exists for an absolute mineral hardness scale by Rosiwal.


    On one side of the ruler are pictures of the ten common minerals, in full color, selected by Mohs for his relative hardness scale. On the reverse side of the ruler are six common items with their relative hardnesses. These items, along with known minerals, can be used as a handy field kit to test the relative hardness of an unknown mineral.


    Hardness is one property of a mineral that can be used to distinguish among similar minerals. A given mineral can scratch any other mineral of the same or softer hardness. Over a hundred years ago, the German mineralogist Frederick Mohs devised the relative hardness scale that has found favor with mineralogists for over a century. Others, such as Rosiwal, formed absolute hardness scales using the same minerals as Mohs. For example, diamond, the hardest substance in Nature is not twice as hard as apatite, 10 versus 5, but over twenty thousand times as hard, 140,000 versus 6.5.

    FG-00000005
    $3.17
  • Smithsonian Eyewitness Rocks and Minerals

    Here is a spectacular and informative guide to the amazing world beneath our feet. Stunning color photographs of rocks, fossils, minerals, precious metals, crystals, jewels and gemstones give the reader a unique eyewitness insight into the evolution and composition of the Earth. See rocks that have come from outer space, stalactites as old as dinosaurs, the strange and beautiful shapes of natural crystals and priceless nuggets of gold, silver and platinum. Learn what the Earth is made of - and how its rocks were formed, how early humans made the first flint tools and how diamonds and precious stones are cut, polished, and made into jewelry. Discover how prehistoric animals are preserved today as fossils, how volcanoes work, how rocks are formed from molten lava, how minerals and metals are mined and how pebbles on the seashore are worn down into sand, and much, much more!
    GB-80000036
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  • Best Book of Fossils, Rocks, and Minerals (Ages 7-11)

    Pack up your gear and get ready to go on a dig. Whether it's iron ore, dazzling gemstones, or a prehistoric creature preserved in amber, a mother lode of exciting discoveries await budding paleontologists and geologists in this informative picture book. Large and detailed full-color spreads, complemented by clear, concise text unearth the mysteries of the ground beneath our feet. Children will learn how rocks, crystals, minerals, and fossils are formed, where they are found, and how they are used. Step-by-step illustrations and captions explore such processes as the fossilization of ancient animals and plants, together with the work of the scientists who catalog and preserve them. Includes an illustrated glossary and an index to sharpen the young reader's reference skills.
    GB-88000025
    $9.71

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  • Smithsonian Eyewitness Crystal and Gem

    Here is a spectacular and informative guide to the amazing world of crystals and gems. Superb color photographs of crystals, jewels and gemstones of every color, size and shape offer a unique eyewitness insight into their extraordinary beauty and variety. See a crystal growing, diamonds used to cut through a brick wall, a phantom crystal, gemstones formed in a volcano, and crystals of gold and silver. Learn how a quartz watch works, how to identify crystals, why crystals have been grown in space, how crystals are used healing, and why Napoleon had a diamond in his sword. Discover where to find crystals in your home, how synthetic crystals are made, which famous rubies are really spinels, which is your birthstone, and much, much more.
    GB-80000033
    $11.99
  • Golden Pocket Guide Rocks, Gems, and Minerals

    Includes information on collecting and identifying minerals, and sections on metallic, nonmetallic, gem and rock-forming minerals, and on igneous, sedimentary and metamorphic rocks.

    This is a great little pocket guide to rocks and minerals. It uses color drawings to illustrate the rocks and minerals which I find is far more handy that pictures of museum quality specimens. Rocks and minerals in the field often don't know what they're supposed to look like so they are more average than those museum exhibits!

    GB-80000062
    $5.21

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  • Smithsonian Ice Dig

    Freeze your own glacier and dig out realistic Ice Age Creature replicas. Just add water and the animals to the glacier mold, freeze it, and dig it! Set includes Glacier Mold, Googles, 5 Animal Figures and Digging Tool. Ages 8 and up.  Reusable.

    * Water Not Included *
    YG-10018931
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  • Estwing Supreme 13 oz Light Weight Rock Hammer E3-13P

    Estwing Supreme 13 oz Light Weight Rock Hammer E3-13P

    The Estwing Supreme 13 oz Light Weight Rock Hammer is best described as an Estwing Supreme 22oz Rock Hammer that has been slimmed down to reduce weight. The rock pick is similar is overall size to the Estwing Supreme 22 oz Rock Hammer. The handle is narrower but the length is almost the same as is the length of the head. It differs in that the hammer head (square) striking end is a slightly smaller size and length. The pick end is the same length but tapered to a sharper point.Great hammer for digging fossils from sandstone. Note that the 13 oz specifies the head weight not the total hammer weight. The 14 oz is actually the lightest pointed tip rock pick that we carry.

    Head Width 6 1/4 inches
    Overall Length 12 1/2 inches
    Head Weight 13 ounces
    Total Weight 1 pound 12 ounces
    HW-01000013
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  • This rock tumbler is the real thing! Light duty rock tumbler actually changes rough stones to beautiful high-luster semi-precious gemstones. You can even make jewelry and key chains with the settings included in this set. Set includes rotary tumbling machine , rough semi-precious stones (including amethyst, jasper, agate, and others), grit, polish, jewelry settings, glue, and instruction manual. Ages 10 and Up. U.L. Listed.

    Great little tumbler for kids to learn about mechanical "weathering" (polishing) of rocks. Just like in a stream the rocks are rolled over and over in a grinding powder. In a stream or river the grit would be sand and fine dirts and clays. In this kit the grit and polish are provided. And it only takes about 6 weeks to polish the rocks unlike months and years in a stream!

    Refill kits available.
    YG-10006354
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  • Folding Pocket Magnifiers, Glass Lenses, Triple 1-1/8 in Dia. Lens, 5x-10x-15x

    Black plastic cases and lens frames, glass lenses.Triple 1-1/8in Dia. Lens, 5x-10x-15x
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