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High grade Ground Calcium Carbonate is produced in Livermore, CO from deposits mined in northern Colorado and southern Wyoming. Products are consistently produced to the various quality standards set by our customers. Products and some of the many uses are listed below. Specific data sheets are available for calcium content and gradation inquiries regarding these products.

  • Cal325

Cal325 is an ultra-fine ground calcium carbonate with the majority of the particles less than 325 mesh (45 microns). Cal 325 is used for fire suppression in underground coal mining, as a calcium supplement for liquid livestock feed, as a filler for asphalt concrete mixes, sealants, and waterproofing membranes, and as a soil amendment.

  • Cal200

Cal200 is finely ground calcium carbonate with a majority of the material finer than the 200 mesh (75 microns). Cal 200 is primarily used in pharmaceuticals and animal feed supplements.

  • Cal80

Cal80 is ground calcium carbonate with the majority of the product being less than 80 mesh (191 microns). Cal 80 is primarily used in roofing shingles and drilling fluids.

  • Cal40x140

Cal40x140 is a semi-course ground calcium carbonate with particle size ranging between 20 mesh (850 microns) and 140 mesh (106 microns). Cal 40x140 is used to stiffen molten glass in the glass manufacturing process, in dog and cat food as a calcium supplement, and in livestock and bird feed as a calcium supplement.

  • Cal16x60

Cal16x60 is course ground calcium carbonate with the particle size between 12 mesh (170 mm) and 50 mesh (300 microns). Cal 16x60 is used as a calcium supplement in livestock feed, as a calcium supplement in bird feed, as a water treatment media, as a soil amendment in potting soil, and as a structural component in cast stone ornaments.

  • Cal 4x10

Cal4x10 is a course ground calcium carbonate with the particle size between 5 mesh (4 mm) and 14 mesh (1410 microns). Cal 4x10 is primarily used as a filler in fertilizer and a calcium supplement in poultry feed.



Ground Calcium Carbonate FAQs

  • What are the Colorado Lien complex customer loading hours?

    a. Quarry: Monday – Friday: 7:00am – 3:00pm

    b. Fine Grind Plant: Monday – Friday: 24 hours a day; Saturdays: Open until 2pm; Sunday: Open at 8:00am through the day/night.

  • Do we sell to the public?


  • What are the directions to Owl Canyon Complex?

    The complex is located 17 miles north of Fort Collins on Highway 287, ½ mile north of mile marker 365, and 1 mile south of "The Forks" in Livermore, CO.

  • What is the difference between Lime and Ground Calcium Carbonate (GCC)

    a. Lime is produced by heating limestone in a kiln to change the mineral into calcium oxide, and calcium carbonate (aka: pulverized limestone or fine grind) is produced by pulverizing high-grade calcium minerals, in Pete Lien & Sons' case limestone, into a ground granular or power sized finished product.

    b. Pete Lien & Sons sells both Lime and Calcium Carbonate, but each product is produced at different locations.

    c. Lime is produced out of our Rapid City Complex, Frannie Complex, and Colorado Hydrate Complex, while Calcium Carbonate is produced out of our Owl Canyon Complex.

  • Does Pete Lien & Sons sell AgLime

    Yes, the name 'AgLime' is a bit deceiving because it is not lime, instead it is agricultural crushed limestone. Pete Lien & Sons sells 'AgLime' out of the Owl Canyon Complex via Ground Calcium Carbonate.

  • What do you mean by ‘Fine Grind’?

    a. Fine Grind is the process of pulverizing limestone

    b. There are many different names for Fine Grind material. They include; pulverized limestone/mineral, ground calcium carbonate (GCC), cal. carb., mineral filler, and AgLime to name a few. To complicate things further, each fine grind manufacturer has a different brand name for pulverized limestone.

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