SKU: 23135446081

Rock and Gem

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Description

Rock and GemBy: DK Explore Earths natural treasures, from their primeval origins to traditional uses and modern day appeal with this illustrated guide to rocks, minerals, crystals, gems and more! Featuring sparkling crystals, vibrant gemstones, and other precious materials often prized for their beauty, such as amber, coral, and fossils, this illustrated guide is sure to captivate every rockhound and budding gemmologist. Learn how to identify more than 450 rock

By: DK     
Explore Earth’s natural treasures, from their primeval origins to traditional uses and modern-day appeal with this illustrated guide to rocks, minerals, crystals, gems and more!

Featuring sparkling crystals, vibrant gemstones, and other precious materials often prized for their beauty, such as amber, coral, and fossils, this illustrated guide is sure to captivate every rockhound and budding gemmologist. 

Learn how to identify more than 450 rock and mineral specimens through beautiful photographs and key characteristics. Discover more about rocks and minerals through folklore and historical artefacts, and find out the fascinating stories behind some of the amazing natural treasures, including the Hope Diamond and the Great Mogul emerald. Plus there is information on polishing and displaying your finds to further equip you with all the knowledge needed to become a rock and mineral collector.

Dive deep into this riveting book on rocks and minerals to further discover:

- Comprehensive coverage of more than 450 specimens of rocks, minerals, crystals, gems and fossils.
- Expert text and high-quality images combine to make this an indispensable reference tool for every rockhound and budding gemmologist.
- Detailed reference panels provide key at-a-glance information for identifying specimens.
- Feature panels on folklore, historical artefacts, and famous gems tell the fascinating stories of rocks and minerals.
- Includes information on collecting and showing rocks and minerals.


Practical advice on cutting, polishing, and displaying your finds further equips you with all the knowledge needed to delve into the arena of rock and mineral collecting.

SI Rock and Gem was produced in association with the Smithsonian in Washington, DC, the world's largest museum complex, ensuring the guide's accuracy.
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SKU: 23135446081

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Yamilet Suárez
Lowell, US
★★★★★ 5
Soft and Comfortable Sheets for Everyday Use
Color: Frosted Lavender, Size: Twin, Color: Frosted Lavender, Size: Twin
I really like these sheets. They are soft, lightweight, and fit my twin mattress perfectly. The lavender color looks beautiful in person and they feel comfortable to sleep on. After washing, they still looked nice and didn’t wrinkle much. Great quality for the price!
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Reviewed in the United States on May 21, 2026
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Samantha Rainwater
New York, US
★★★★★ 4
Twin XL sheet set
Color: Dutch Blue, Size: Twin XL
Affordable 3 piece twin XL sheet set comes with fitted sheet, top sheet and pillow case. product is soft, breathable and fits Twin XL bed. Color is nice and vibrant.
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Reviewed in the United States on June 5, 2026
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Yudelkys del Toro
Charlottesville, US
★★★★★ 5
Sheet set
Color: Burgundy, Size: Queen
This lightweight microfiber sheet set stands out for its softness, comfort, and elegant design. Its fabric feels cool to the touch, withstands daily use, and is easy to wash, retaining its vibrant color wash after wash. It is an excellent choice for adding a cozy and sophisticated touch to the bedroom at an affordable price.
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Reviewed in the United States on May 22, 2026
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Johanna Duska
Grantham, US
★★★★★ 5
Perfect Lightweight Sheets for Sensitive Hot sleepers
Color: Cream, Size: Queen
These sheets are soft, thin, and absolutely perfect for me. I have advanced CRPS and erythromelalgia, so I deal with severe nerve burning and heat sensitivity and cannot tolerate being overheated at all. I keep our AC between 56–64 degrees constantly, and since our studio is small, it usually stays around 61–63. These sheets have been a lifesaver for sleep. They are lightweight, breathable, and don’t trap heat, which helps me avoid extreme flare-ups and the intense burning pain I deal with. I'm bedridden so I need to be comfortable. They feel comfortable against my skin and don’t worsen my symptoms when I’m already in a lot of pain and look nice, wash nicely. For the price, they are also a great value. I’m genuinely grateful to have found something that helps me rest more comfortably. Will be buying more for us and gifts.
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Reviewed in the United States on April 24, 2026
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Carolyn
Whiting, US
★★★★★ 5
Great sheet set
Color: Blush Pink, Size: Full
Super soft right out of the package. Thin material but should be perfect for cool nights. Blush pink is the perfect shade of pink. Love this set. Highly recommended especially at this price point.
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Reviewed in the United States on May 30, 2026

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