United States

Blue Diamond Complex

Click for more information

Categories

Overview

Mine TypeUnderground
StatusActive
Commodities
  • Coal (metallurgical)
Mining Method
  • Room-and-pillar
  • Continuous
Mine Life... Lock
SnapshotBlue Diamond Complex consists of No.77, Calvary No.81, Bear Branch 2 active mines and No.76 Plant.
Related Asset

Owners

SourceSource
CompanyInterestOwnership
Blackhawk Mining, LLC (operator) 100 % Indirect
Sev.en Energy AG 100 % Indirect
On June 1, 2020, Sev.en Energy AG acquired US metallurgical coal producer Blackhawk Mining, LLC.

The Blue Diamond Complex is operated by Blue Diamond Mining LLC and Blue Diamond Coal Company, LLC, which are subsidiaries of Blackhawk Mining LLC.

Deposit type

  • Sedimentary

Summary:

Coal seams: Fire Clay, Haddix, Hazard, Hindman, Alma, Upper Elkhorn

Fire Clay coal bed
Flint clay is a claystone composed of microcrystalline to cryptocrystalline kaolinite or halloysite; it is smooth, hard, flint-like in appearance, and breaks with a conchoidal fracture.

A flint clay parting in the Fire Clay coal of the Breathitt Formation (Middle Pennsylvanian, estphalian B) occurs throughout most of eastern Kentucky and in parts of Tennessee, Virginia, and West Virginia.

Examination of Westphalian continental reconstructions, trade wind patterns, and a present-day, ash-fall distribution indicate that the location of the volcanic source for this flint clay was along a line from Kentucky to North Carolina (approximately due east). The intersection of this line with a palinspastically replaced, known Hercynian magmatic arc occurs in extreme eastern North Carolina. This is the approximate location of the volcanic source for the ash.

Because of the extensive distribution of the parting, the Fire Clay coal bed is the only coal bed in eastern Kentucky that can be positively identified over a large area.

Reserves

Lock

- subscription is required.

Mining Methods

Lock

- subscription is required.

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

Lock

- subscription is required.

Production

CommodityUnits2023202220212020201920182017
Coal (metallurgical) tons  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe792,678992,5531,147,650
All production numbers are expressed as clean coal.

Operational metrics

Metrics20232022
Hourly processing capacity  ....  Subscribe  ....  Subscribe

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Lock

- subscription is required.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 12, 2024
....................... Subscription required ....................... Subscription required Subscription required Jun 12, 2024
....................... Subscription required ....................... Subscription required Subscription required Jun 12, 2024

EmployeesYear
...... Subscription required 2023
...... Subscription required 2022
...... Subscription required 2021
...... Subscription required 2020
...... Subscription required 2019
...... Subscription required 2018
...... Subscription required 2017

Lock

- subscription is required.