Home Commercial Department Granite Quarries
Whetstone Mahogany Quarry

Whetstone Mahogany QuarrySince the Whetstone property was purchased in 1990, this quarry has been developed into our "project quarry" to meet the demands of even the largest projects.

Since switching to wire saw production its yields have increased dramatically. Of all our quarries, it shows the greatest potential for both premium gang saw blocks and smaller economy blocks perfect for project production.

Like our other Dakota Mahogany quarries, Whetstone's impressive test data make it ideal for outdoor use in any climate and for heavy foot traffic areas.

Test Data

Compressive Strength: 22,500 PSI
Modules of Rupture: 2,820 PSI
Water Absorption: 0.106% By Weight
0.288% By Volume
Flexural Strength: 1,598 PSI
Abrasion Index: 57.08 Ha
Annual Quarry Production: 2,000 M3
Type of Stone: Granite
Quarry Location: Milbank, SD U.S.A.
 
Sunset Mahogany Quarry

Sunset Mahogany Quarry SampleThe Sunset Mahogany quarry supplies monumental grade material to our state-of-the-art memorial processing facility. Sunset Mahogany has also been used in some of the world's most prestigious building projects. Sunset Mahogany's deep blue/brown background interspersed with colored grains have made it one of the most recognizable granites in the world.

Although there are many stones that call themselves "mahogany", Dakota Granite's Sunset Mahagany is the orginal and continues to be the "mahogany" to which all others are compared.

Test Data

Compressive Strength: 22,500 PSI
Modules of Rupture: 2,820 PSI
Water Absorption: 0.106% By Weight
0.288% By Volume
Flexural Strength: 1,598 PSI
Abrasion Index: 57.08 Ha
Annual Quarry Production: 2,000 M3
Type of Stone: Granite
Quarry Location: Milbank, SD U.S.A.
 
Brown Velvet Mahogany Quarry

Brown VelvetThe smallest of our three Dakota Mahogany quarries, Brown Velvet has long been a favorite among block buyers because of its finer grain compared with the other two. Since the mid 1970's Japan and Taiwan have used 100% of this quarry's production, and only in recent years has it been made available to the rest of the world. With a maximum annual production of 1,000 cubic meters, Brown Velvet is perfect for the small to medium size building projects.

Test Data

Compressive Strength: 22,500 PSI
Modules of Rupture: 2,820 PSI
Water Absorption: 0.106% By Weight
0.288% By Volume
Flexural Strength: 1,598 PSI
Abrasion Index: 57.08 Ha
Annual Quarry Production: 1,000 M3
Type of Stone: Granite
Quarry Location: Milbank, SD U.S.A.
 
Bellingham Quarry

Bellingham Quarry SampleIntroducing Bellingham granite from Bellingham, Minnesota. Located approximately 13 miles from our Milbank, South Dakota facility, it's a granite that up until now has been used solely for memorial monuments.

Bellingham's color is predominately pink/beige mixed with flecks of black giving it a subdues sophistication. Bellingham's lighter color makes it perfect for mixing with a darker color where high contrast is needed. Also, it's exceptional hardness make it the ideal granite for areas where heavy traffic occurs, such as polished airport floors or thermal outdoor sidewalks, and with its low absorption rate, water stains won't be an issue.

Test Data

Compressive Strength: 25,100 PSI
Modules of Rupture: 2,600 PSI
Water Absorption: 0.130% By Weight
Flexural Strength: 2,100 PSI
Abrasion Index: 32.3 Ha
Annual Quarry Production: 750 M3
Type of Stone: Granite
Quarry Location: Bellingham, MN U.S.A.
 
American Bouquet Quarry

American Bouquet Quarry SampleAmerican Bouquet has been in Dakota Granite's family of granites since 1937. Its main use has been for monuments but it's also an ideal candidate for dimensional stone as well.

Imagine Dakota Mahogany without the blue quartz and 3 times as much salmon color and you'll understand why American Bouquet has been a favorite in the monument industry for over 70 years.

Test Data

Compressive Strength: 26,500 PSI
Modules of Rupture: 2,800 PSI
Water Absorption: 0.100% By Weight
Flexural Strength: 2,300 PSI
Abrasion Index: 35.50 Ha
Annual Quarry Production: 750 M3
Type of Stone: Granite
Quarry Location: Milbank, SD U.S.A.