# A counter-top search for macroscopic dark matter

## TL;DR

This paper proposes a novel method to detect macroscopic dark matter candidates by examining cooled, resolidified rock traces in countertop samples, offering a new way to explore unprobed macro parameter space.

## Contribution

It introduces a practical, countertop-based approach to search for macroscopic dark matter, expanding detection techniques beyond traditional methods.

## Key findings

- Cooled rock cylinders could reveal past macro passages.
- Countertop samples can be used to probe previously untested macro parameters.
- The method offers a feasible way to detect or constrain macroscopic dark matter.

## Abstract

A number of dark matter candidates have been discussed that are macroscopic, of approximately nuclear density, and scatter ordinary matter essentially elastically with approximately their geometric cross-section. A wide range of mass and geometric cross-section is still unprobed for these "macros." Macros passing through rock would melt the material in cylinders surrounding their long nearly straight trajectories. Once cooled, the resolidified rock would be easily distinguishable from its surroundings. We discuss how, by visually examining ordinary slabs of rock such as are widely available commercially for kitchen countertops, one could probe an interesting segment of the open macro parameter space.