Dust in the core of the metal-rich globular cluster NGC 6356

We report the 3.5 sigma detection of dust in the core of the metal-rich ([Fe/H] = -0.4) globular cluster NGC 6356, The dust mass in the core is similar to 4-17 x 10(-3) M., depending on the dust equilibrium temperature. We rule out sputtering as a grain destruction mechanism in NGC 6356, unless grains are very small (similar to 30 Angstrom), We also place the upper limit of 6.6 x 10(-3) on the CO-to-dust ratio in this cluster. This value is significantly smaller than the CO-to-dust ratio in the general Galactic interstellar medium, and in the outflows of evolved stars.