Nickelblende
Nickelblende is a colloquial and outdated term, primarily used historically, to refer to minerals that contain nickel and are often found in association with other metallic ores. The term itself is derived from German, where "blende" means to deceive or to mix, reflecting the fact that these nickel-bearing minerals were often found alongside more valuable or recognizable ores, making their identification and extraction challenging.
The most common mineral historically referred to as nickelblende is Garnierite, which is not a single mineral
Another mineral that might have been loosely included under the umbrella term nickelblende is Pentlandite. Pentlandite