What Green Diamond Performance Materials does

Green Diamond Performance Materials is a US-based manufacturer of synthetic olivine industrial materials, founded in 1961 and headquartered in Riddle, Oregon. The company mines a 10-million-ton magnesium orthosilicate reserve derived from repurposed nickel slag and converts it through a fresh-water-quenched, amorphous glass-forming process into four product lines: abrasive blast media for industrial surface preparation, synthetic olivine foundry sand for metal casting, roofing granules for asphalt shingle manufacturing, and specialty aggregates for road construction, sports surfaces, and other applications.

The underlying technology is a proprietary synthetic olivine process that produces a glasslike, amorphous grain structure with controlled chemistry, no free silica (less than 0.1%), and tightly graded particle sizing achieved through advanced water separation rather than conventional mechanical screening. This raw-material architecture underpins functional differentiators including low dusting, lower specific gravity, high thermal durability, and superior foundry performance — specifically, up to 45% greater metal flow distance versus silica or natural olivine, and reduced makeup sand to 10% of sand-to-metal ratio in optimized systems. A closed-loop recycling program at the Clackamas, Oregon facility reclaims spent materials, and an add-on pre-mulled green sand blending service extends the company beyond commodity grain into formulated foundry inputs.

Green Diamond operates three production facilities — Riddle, Oregon headquarters with the mine; Clackamas, Oregon processing and recycling plant; and National City, California terminal — and employs 80+ team members. Revenue is generated through unit-based bulk hardware sales of 50 lb bags and larger volumes, with quote-based delivered pricing that incorporates freight and packaging. The go-to-market motion combines a nationwide authorized distributor network (separate directories for abrasives and foundry sand) with named direct sales representatives handling enterprise accounts; the company also maintains website content, technical documentation libraries, and YouTube video marketing across the four product lines. The business is privately held with no disclosed institutional investors, funding rounds, or parent company, and is sold to customers across shipbuilding, automotive, manufacturing, oil and gas, aerospace, roofing shingle manufacturing, foundry casting, and specialty construction end markets.

Name

Green Diamond Performance Materials

Legal name

Green Diamond Performance Materials

Website

https://greendiamondpm.com

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

51–100 employees

Short description

Green Diamond Performance Materials is a US manufacturer of synthetic olivine abrasive blast media, foundry sand, roofing granules, and specialty aggregates, made from a 10-million-ton magnesium orthosilicate reserve in Riddle, Oregon, serving over 500 industrial customers nationwide.

Ownership category

akta.pro rank

Product category

Industrial Abrasives and Performance Materials

NAICS

Abrasive Product Manufacturing (327910), Ground or Treated Mineral and Earth Manufacturing (327992)

SIC

Abrasive, Asbestos & Misc Nonmetallic Mineral Prods (3290), Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Magnesite & Magnesium Minerals (IMAEAFAL)

akta.pro secondary industries

Magnesite & Magnesium Minerals Mining (IMAKAGAN), Industrial Sand (Silica Sand for Foundry, Glass & Industrial Uses) (IMAKAHAK)

Keywords

• Abrasive blast media
• Synthetic olivine foundry sand
• Roofing granules manufacturing
• Specialty industrial aggregates
• Silica-free blasting abrasives

Headquarters

HQ city

Riddle

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Infrastructure, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Industrial Materials Sales: Green Diamond generates revenue through the sale of industrial materials including abrasive blast media, foundry sand, roofing granules, and specialty aggregates. Products are sold in bulk (e.g., 50 lb bags) through distributors and direct sales. Pricing is delivered-price dependent on freight and packaging costs. The company also offers a recycling program for spent Green Diamond materials through its Clackamas facility.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels6 records

Core offering

Green Diamond Performance Materials manufactures synthetic olivine industrial materials from a 10-million-ton magnesium orthosilicate reserve in Riddle, Oregon. Its portfolio includes silica-free abrasive blast media for surface preparation, foundry sand for metal casting, roofing granules for asphalt shingle manufacturing, and specialty aggregates, sold through authorized distributors and direct sales to industrial customers nationwide.

Product overview

Green Diamond Performance Materials offers a portfolio of four core product lines derived from magnesium orthosilicate reserves: Synthetic Olivine Abrasive Blast Media for industrial surface preparation, Synthetic Olivine Foundry Sand for precision metal casting, Roofing Granules for asphalt shingle manufacturing, and Specialty Materials for aggregate applications. The company also provides custom Pre-Mulled Green Sands as a blended add-on service for foundry customers, and operates a recycling program for spent materials. All products are sourced and processed in the United States from the company's 10-million-ton reserve in Riddle, Oregon, with distribution through authorized partners nationwide.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Metal flow distance increased up to 45% compared to silica or natural olivine sands in foundry applications
• +4 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Scale indicators6 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• Barton International: Barton produces garnet abrasives for waterjet cutting and blast media, directly competing with Green Diamond's synthetic olivine in industrial surface preparation and abrasive blasting markets.
• GMA Garnet Group: GMA is a global producer of garnet abrasives for industrial blasting and waterjet cutting. Directly comparable to Green Diamond's abrasive blast media product line across surface preparation applications.
• US Silica Holdings: US Silica is a major North American producer of industrial sand for foundry, oil and gas, glass, and building products. Directly comparable to Green Diamond's foundry sand and abrasive media in industrial mineral applications, with overlapping customer bases in foundry and surface preparation.
• Opta Minerals: Opta produces mineral-based abrasives and foundry products including garnet, copper slag, and specialty aggregates. Overlaps with Green Diamond across both abrasive blast media and foundry sand product lines in North American industrial markets.
• Preferred Sands: Preferred Sands produces industrial sand for foundry, glass, and oil and gas applications. Direct competitor to Green Diamond's foundry sand product line in North American industrial minerals markets.
• Covia (formerly Fairmount Santrol): Covia is a leading North American producer of industrial sand and minerals for foundry, glass, sports, and oil and gas markets. Direct competitor to Green Diamond's foundry sand and specialty aggregate offerings, with similar end-customer profiles.
• Marco Group International: Marco Group distributes abrasive blast media and shot blast equipment across North America, directly competing with Green Diamond's abrasive products in industrial surface preparation and shipyard restoration markets.

Broad incumbents

• Carmeuse: Carmeuse is a global producer of lime and mineral-based products for steel, construction, and industrial applications. Adjacent competitor with overlap in foundry consumables, aggregates, and industrial minerals markets served by Green Diamond.
• Imerys: Imerys is a global leader in mineral-based specialty solutions serving foundry, construction, paper, and abrasives. Overlaps with Green Diamond's industrial minerals portfolio through a much broader product range and global footprint.
• Minerals Technologies Inc. Minerals Technologies is a global industrial minerals company with foundry products, bentonite, and specialty minerals. Adjacent competitor with overlap in foundry consumables and industrial mineral additives that compete with Green Diamond's foundry sand.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/110329823684235

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Green Diamond Performance Materials