This Government Contract opportunity from Department Of The Interior was posted on July 10, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

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Heavy Liquid Density Separation for Mineral Isolation

Closed

Federal

Submission Closed07/17/2026, 04:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

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AI Contract Overview

The Department of the Interior, through the Office of Acquisition Grants, is seeking a subcontractor for a project titled Heavy Liquid Density Separation for Mineral Isolation. The scope of work involves utilizing heavy liquids, specifically sodium polytungstate, to separate zircon and apatite from crushed rock based on specific gravity. This process includes critical operational phases such as decanting, washing, and the recovery of materials. This opportunity is designated as a Total Small Business Set-Aside under FAR 19.5, falling under NAICS code 541380. The solicitation was posted on July 10, 2026, with a response deadline of July 17, 2026.

General Info

Small business subcontract for mineral isolation using heavy liquid density separation for DOI.

Agency

Department Of The Interior → Office Of Acquisiton GrantsView Agency

NAICS

541380 - Testing Laboratories and ServicesView NAICS

Place of Performance

Set-Aside

SBA

Documents

This scope was carved out of 140G0326Q0160.

The full solicitation package (2 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

EO 14398 - this requirement is for support service

AI Contract Breakdown

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Timeline

PhaseClosed

PostedJul 10

subcontract

Response DeadlineJul 17

Deadline has passed

Submission Closed

07/17/2026, 04:00:00 PM UTC

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Organization & Contact Information

AgencyDepartment Of The Interior → Office Of Acquisiton Grants

ContactsNo contacts available

OfficeN/A

Organization / Agency

Department Of The Interior → Office Of Acquisiton Grants

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Use of heavy liquids such as sodium polytungstate to separate zircon and apatite from crushed rock based on specific gravity, including decanting, washing, and recovery.