Howlite 12.28ct 18.26×11.94×5.37mm Natural Gemstone United States

767.00 614.00

Howlite Stone

Weight: 12.28ct

Dimension: 18.26×11.94×5.37mm

Origin: United States

Treatment: None 

In stock

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SKU: ak3500 Category:
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Howlite Stone 12.28ct


This Howlite is natural gemstone which is Greyish White Color, it’s Originates from the United States and its exact weight is 12.28ct the measurements are 18.26×11.94×5.37mm, the shape and cut of this stone are Rectangle Cabochon. It’s graded Opaque and clarity is good. This 12.28ct Greyish White Color Natural Howlite Gem is available for ready to ship anywhere in the world. You can also select Certification and shipment method as optional.


Summary Noak3500
SpeciesNatural Howlite Stone 
Shape/cutRectangle Cabochon
ColourGreyish White Color
OriginUnited States

Payment Options

PayPal – International Buyers can use following Payment options.

Credit Card, Debit Card, Amex Card and Bank Transfer

PayuMoney – Domestic Buyers Only From India Can Use following Payment Options. 

Credit Card, Debit Card, Amex Card, Bank Transfer and Online Transfer 

Shipment Details

International Express Shipping:  Most probably your shipment will reach in 3 to 7 business days Fixed International Express Shipping Charges is $40. Please read our International Orders Policies to understand local custom procedure and duties. 

International Standard Shipping: Most probably your shipment will reach in 7 to 45 business days Fixed Standard Shipping Charges is $10. Please read International Orders Policies to understand local custom procedure and duties. 

Domestic Express Shipping:  Most probably your shipment will reach in 1 to 3 business days Fixed Domestic Express Courier Charges is Rs 450. (Applicable Only In India) Read Domestic Order Policies

Domestic Standard Shipping: Most probably your shipment will reach in 3 to 7 business days Fixed Standard Courier Charges is Rs 200. (Applicable Only In India) Read Domestic Order Policies


All Gemstones Are Natural!! (If the gem have any treatments we mention in description clearly).

We don’t sell Glass Filled Rubies, Sapphires and also highly treated gemstones.  All the product photos are actual gemstone photos. 

If you are not satisfied with our product you can get money back return in 10 Days without any hassle. Read Our Return Policies


All Product Get standard GemFame Gemstone Report along with your orders. If you want a certificate for registered Lab, We also provide additional gemstones certificate from NGL (National Gem Lab) which is located in India is chargeable. Read More

Additional Quantities

Every gem has it’s own unique quality, Size, weight & color so you can get only 1 quantity in each item.

Howlite Stone 12.28ct

Properties Of Howlite Stone

Chemical Composition: Ca2B5SiO9(OH)5 Calcium borosilicate hydroxide

Hardness: 3.5

Specific Gravity (Density): 2.45 – 2.58

Refractive Index: 1.583 – 1.600

About  Howlite Stone

Howlite, a calcium borosilicate hydroxide (Ca2B5SiO9(OH)5), is a borate mineral discovered among evaporite deposits. Howlite was found close to Windsor, Nova Scotia in 1868 by Henry How (1828–1879), a Canadian chemist, geologist, then mineralogist. How was alerted in imitation of the unknown metal with the aid of miners into a gypsum quarry, whosoever found that in conformity with be a nuisance. He called the new metal silico-boro-calcite; such was once attached the fame howlite with the aid of James Dwight Dana rapidly thereafter. The most frequent structure of howlite is irregular nodules, once in a while corresponding to cauliflower. Crystals on howlite are rare, having been found in only a couple localities worldwide. Crystals had been forward referred to besides Tick Canyon within the Sierra Pelona Mountains regarding California, or additional at Iona, Nova Scotia. Crystals reach the most bulk on as regards certain centimeter. The nodules are white including satisfactory grey and black veins among an erratic, frequently web-like pattern, opaque along with a sub-vitreous luster. The crystals at Iona are colorless, pure or brown yet are often translucent yet transparent. Its structure is monoclinic with a Mohs solidity of 3.5 yet lacks regular cleavage. Crystals are prismatic and flattened of {100}.The crystals beyond Tick Canyon are elongated along the 010 axes, whilst those beyond Iona are elongated along the 001 axes.

Howlite is many times used after performing decorative objects such as short carvings or jewelry components. Because regarding its porous texture, howlite may be effortlessly dyed in conformity with imitating other minerals, especially turquoise due to the fact on the superficial similarity about the veining patterns. Howlite is additionally sold within its natural state, every so often underneath the deceptive trade names of “white turquoise” and “white buffalo turquoise,” or the derived name “white buffalo causeway. Oftentimes, if the reality were known, Howlite would be better known as a Turquoise immitation. Howlite is frequently (and incredibly convincingly) dyed blue to pass as Turquoise. It even contains gray to black threadlike impurities resembling the veining in Turquoise. A source that is present of is Cape Breton Island, Victoria County, Nova Scotia, Canada although these crystals are not suitable for faceting. The sort that is massive be located at the Sterling Borax Mine, Tick Canyon, Lang, l. a. County, Ca, USA (and a few other California locations); Magdalena, Sonora, Mexico; Susurluk, Turkey; Baljevac na Ibru, near Kraljevo, and near Bela Stena, Yugoslavia.


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