Mine - Land mine - Contact mine4K maps includedsimplified topologywatertight modeling - also useable for 3D printing.

This mine has 3 capsules filled with toxin - when the button is being pushed the toxin gets released.

Naval mines may be classified into three major groups; contact, remote, and influence mines.

The earliest mines were usually Contact mines. They are still used today, as they are extremely low cost compared to any other anti-ship weapon and are effective, both as a psychological weapon and as a method to sink enemy ships. Contact mines need to be touched by the target before they detonate, limiting the damage to the direct effects of the explosion and usually affecting only the vessel that triggers them.

Early mines had mechanical mechanisms to detonate them, but these were superseded in the 1870s by the Hertz horn (or chemical horn), which was found to work reliably even after the mine had been in the sea for several years. The mine's upper half is studded with hollow lead protuberances, each containing a glass vial filled with sulfuric acid. When a ship's hull crushes the metal horn, it cracks the vial inside it, allowing the acid to run down a tube and into a lead–acid battery which until then contained no acid electrolyte. This energizes the battery, which detonates the explosive.[47]

Earlier forms of the detonator employed a vial of sulfuric acid surrounded by a mixture of potassium perchlorate and sugar. When the vial was crushed, the acid ignited the perchlorate-sugar mix, and the resulting flame ignited the gunpowder charge.